"Pyran"@cs . "\u041F\u0438\u0440\u0430\u043D (\u0438\u043B\u0438 \u043E\u043A\u0441\u0438\u043D) \u044F\u0432\u043B\u044F\u0435\u0442\u0441\u044F \u0448\u0435\u0441\u0442\u0438\u0447\u043B\u0435\u043D\u043D\u044B\u043C \u0433\u0435\u0442\u0435\u0440\u043E\u0446\u0438\u043A\u043B\u0438\u0447\u0435\u0441\u043A\u0438\u043C, \u043D\u0435\u0430\u0440\u043E\u043C\u0430\u0442\u0438\u0447\u0435\u0441\u043A\u0438\u043C \u043A\u043E\u043B\u044C\u0446\u043E\u043C, \u0441\u043E\u0441\u0442\u043E\u044F\u0449\u0438\u043C \u0438\u0437 \u043F\u044F\u0442\u0438 \u0430\u0442\u043E\u043C\u043E\u0432 \u0443\u0433\u043B\u0435\u0440\u043E\u0434\u0430 \u0438 \u043E\u0434\u043D\u043E\u0433\u043E \u0430\u0442\u043E\u043C\u0430 \u043A\u0438\u0441\u043B\u043E\u0440\u043E\u0434\u0430 \u0438 \u0438\u043C\u0435\u0435\u0442 \u0434\u0432\u0435 \u0434\u0432\u043E\u0439\u043D\u044B\u0435 \u0441\u0432\u044F\u0437\u0438. \u041E\u043D \u0438\u043C\u0435\u0435\u0442 \u0434\u0432\u0430 , \u043A\u043E\u0442\u043E\u0440\u044B\u0435 \u0440\u0430\u0437\u043B\u0438\u0447\u0430\u044E\u0442\u0441\u044F \u0440\u0430\u0441\u043F\u043E\u043B\u043E\u0436\u0435\u043D\u0438\u0435\u043C \u0434\u0432\u043E\u0439\u043D\u044B\u0445 \u0441\u0432\u044F\u0437\u0435\u0439. \u0412 \u03B1-\u043F\u0438\u0440\u0430\u043D\u0435 \u043D\u0430\u0441\u044B\u0449\u0435\u043D\u043D\u044B\u0439 \u0443\u0433\u043B\u0435\u0440\u043E\u0434 \u043D\u0430\u0445\u043E\u0434\u0438\u0442\u0441\u044F \u0432 \u043F\u043E\u0437\u0438\u0446\u0438\u0438 2, \u0430 \u0432 \u03B3-\u043F\u0438\u0440\u0430\u043D\u0435 \u2014 \u0432 \u043F\u043E\u0437\u0438\u0446\u0438\u0438 4.\u03B3-\u043F\u0438\u0440\u0430\u043D \u0431\u044B\u043B \u0432\u043F\u0435\u0440\u0432\u044B\u0435 \u043E\u043F\u0438\u0441\u0430\u043D \u0432 1962 \u0433\u043E\u0434\u0443 \u043F\u043E\u0441\u043B\u0435 \u043F\u0438\u0440\u043E\u043B\u0438\u0437\u0430 2-\u0430\u0446\u0435\u0442\u043E\u043A\u0441\u0438-3,4-\u0434\u0438\u0433\u0438\u0434\u0440\u043E-\u03B1-\u043F\u0438\u0440\u0430\u043D\u0435. \u042F\u0432\u043B\u044F\u0435\u0442\u0441\u044F \u043D\u0435\u0441\u0442\u0430\u0431\u0438\u043B\u044C\u043D\u044B\u043C, \u0447\u0430\u0441\u0442\u0438\u0447\u043D\u043E \u043F\u0440\u0438 \u043A\u043E\u043D\u0442\u0430\u043A\u0442\u0435 \u0441 \u0432\u043E\u0437\u0434\u0443\u0445\u043E\u043C \u03B3-\u043F\u0438\u0440\u0430\u043D \u043B\u0435\u0433\u043A\u043E \u0440\u0430\u0441\u043F\u0430\u0434\u0430\u0435\u0442\u0441\u044F \u043D\u0430 \u0434\u0438\u0433\u0438\u0434\u0440\u043E\u043F\u0438\u0440\u0430\u043D \u0438 , \u043A\u043E\u0442\u043E\u0440\u044B\u0439 \u043B\u0435\u0433\u043A\u043E \u0433\u0438\u0434\u0440\u043E\u043B\u0438\u0437\u0443\u0435\u0442\u0441\u044F \u0432 \u0432\u043E\u0434\u043D\u043E\u0439 \u0441\u0440\u0435\u0434\u0435."@ru . "Pyrane sind zwei chemische Verbindungen mit der Summenformel C5H6O, die zu den sauerstoffhaltigen Heterocyclen z\u00E4hlen. Ihr Ringger\u00FCst wird aus f\u00FCnf Kohlenstoffatomen sowie einem Sauerstoffatom gebildet und enth\u00E4lt zwei Doppelbindungen. Dadurch ergeben sich zwei Isomere, das 2H-Pyran oder \u03B1-Pyran und das 4H-Pyran oder \u03B3-Pyran. Pyrane sind nicht aromatisch, da nicht alle Kohlenstoff-Atome sp2-hybridisiert sind. \u03B3-Pyran ist ein farbloses \u00D6l mit dem Siedepunkt 80 \u00B0C, das in Ethanol, Benzol und Diethylether l\u00F6slich ist und sich an der Luft schnell braun f\u00E4rbt. Die Synthese geht von Glutardialdehyd aus. \u00C4hnliche Strukturen bilden einige Kohlenhydrate (Zucker), diese werden als Pyranosen bezeichnet, enthalten jedoch keine Doppelbindungen im Ring. Sowohl 2H-Pyran als auch 4H-Pyran kommen in der Natur nicht frei vor, von ihnen leiten sich jedoch viele Naturstoffe wie Pyrone, etwa Cumarin oder farbige Flavone, z. B. Luteolin ab. Auch einige synthetische Farbstoffe und Arzneistoffe sind Pyranderivate."@de . "Pyrane sind zwei chemische Verbindungen mit der Summenformel C5H6O, die zu den sauerstoffhaltigen Heterocyclen z\u00E4hlen. Ihr Ringger\u00FCst wird aus f\u00FCnf Kohlenstoffatomen sowie einem Sauerstoffatom gebildet und enth\u00E4lt zwei Doppelbindungen. Dadurch ergeben sich zwei Isomere, das 2H-Pyran oder \u03B1-Pyran und das 4H-Pyran oder \u03B3-Pyran. Pyrane sind nicht aromatisch, da nicht alle Kohlenstoff-Atome sp2-hybridisiert sind. \u00C4hnliche Strukturen bilden einige Kohlenhydrate (Zucker), diese werden als Pyranosen bezeichnet, enthalten jedoch keine Doppelbindungen im Ring."@de . . . . . . "Em qu\u00EDmica, um pirano \u00E9 um heteroc\u00EDclico de anel de seis membros consistindo de cinco \u00E1tomos de carbono e um \u00E1tomo de oxig\u00EAnio e contendo duas liga\u00E7\u00F5es duplas. A f\u00F3rmula molecular \u00E9 C5H6O. Existem dois is\u00F4meros de pirano que diferem pela localiza\u00E7\u00E3o das ligas duplas. Em 2H-pirano, o carbono saturado est\u00E1 na posi\u00E7\u00E3o 2, enquanto no 4H-pirano, o carbono saturado est\u00E1 na posi\u00E7\u00E3o 4. Uma piranose \u00E9 uma das formas que uma aldo-hexose assume, formando um anel hexagonal (com cinco carbonos e um oxig\u00EAnio); o nome deriva do pirano."@pt . . "\uD53C\uB780(\uC601\uC5B4: pyran)\uC740 5\uAC1C\uC758 \uD0C4\uC18C \uC6D0\uC790\uC640 1\uAC1C\uC758 \uC0B0\uC18C \uC6D0\uC790\uB85C \uAD6C\uC131\uB41C 2\uAC1C\uC758 \uC774\uC911 \uACB0\uD569\uC744 \uAC00\uC9C0\uACE0 \uC788\uB294 6\uC6D0\uC790 \uD5E4\uD14C\uB85C\uACE0\uB9AC \uD654\uD569\uBB3C\uC774\uB2E4. \uD53C\uB780\uC740 \uC625\uC2E0(\uC601\uC5B4: oxine)\uC774\uB77C\uACE0\uB3C4 \uBD88\uB9AC\uBA70, \uBD84\uC790\uC2DD\uC740 C5H6O\uC774\uB2E4. \uC774\uC911 \uACB0\uD569\uC758 \uC704\uCE58\uC5D0 \uB530\uB77C 2\uAC00\uC9C0 \uD53C\uB780 \uC774\uC131\uC9C8\uCCB4\uAC00 \uC874\uC7AC\uD55C\uB2E4. 2H-\uD53C\uB780\uC5D0\uC11C \uD3EC\uD654 \uD0C4\uC18C\uB294 2\uBC88 \uC704\uCE58\uC5D0 \uC874\uC7AC\uD558\uBA70, 4H-\uD53C\uB780\uC5D0\uC11C \uD3EC\uD654 \uD0C4\uC18C\uB294 4\uBC88 \uC704\uCE58\uC5D0 \uC874\uC7AC\uD55C\uB2E4. 4H-\uD53C\uB780\uC740 2-\uC544\uC138\uD1A1\uC2DC-3,4-\uB2E4\uC774\uD558\uC774\uB4DC\uB85C-2H-\uD53C\uB780\uC758 \uC5F4\uBD84\uD574\uB97C \uD1B5\uD574 1962\uB144\uC5D0 \uCC98\uC74C\uC73C\uB85C \uBD84\uB9AC\uB418\uACE0, \uD2B9\uC9D5\uC9C0\uC5B4\uC84C\uB2E4. 4H-\uD53C\uB780\uC740 \uD2B9\uD788 \uACF5\uAE30\uC758 \uC874\uC7AC \uD558\uC5D0\uC11C \uB108\uBB34 \uBD88\uC548\uC815\uD55C \uAC83\uC73C\uB85C \uBC1D\uD600\uC84C\uB2E4. 4H-\uD53C\uB780\uC740 \uC0C1\uC751\uD558\uB294 \uBC0F \uC774\uC628\uC73C\uB85C \uC27D\uAC8C \uBD88\uADE0\uD615\uD654\uB418\uBA70, \uC774\uB294 \uC218\uC131 \uB9E4\uC9C8\uC5D0\uC11C \uC27D\uAC8C \uAC00\uC218\uBD84\uD574\uB41C\uB2E4. \uD53C\uB780 \uC790\uCCB4\uB294 \uD654\uD559\uC5D0\uC11C \uAC70\uC758 \uC758\uBBF8\uAC00 \uC5C6\uC9C0\uB9CC, \uD53C\uB780\uC758 \uB9CE\uC740 \uC720\uB3C4\uCCB4\uB4E4\uC740 \uC640 \uAC19\uC740 \uC0DD\uBB3C\uD559\uC801\uC73C\uB85C \uC911\uC694\uD55C \uBD84\uC790\uC774\uB2E4. \uD53C\uB780\uC774\uB77C\uB294 \uC6A9\uC5B4\uB294 \uC885\uC885 \uD3EC\uD654\uB41C \uACE0\uB9AC \uC720\uC0AC\uCCB4\uC5D0\uB3C4 \uC801\uC6A9\uB418\uB294\uB370, \uC774\uB294 (\uC625\uC138\uC778)\uC73C\uB85C \uBCF4\uB2E4 \uC801\uC808\uD558\uAC8C \uC9C0\uCE6D\uB41C\uB2E4. \uC774\uC640 \uAD00\uB828\uD558\uC5EC 6\uC6D0\uC790 \uACE0\uB9AC\uB97C \uAC00\uC9C0\uACE0 \uC788\uB294 \uB2E8\uB2F9\uB958\uB294 \uD53C\uB77C\uB178\uC2A4\uB77C\uACE0 \uD55C\uB2E4."@ko . "2"^^ . "\u0628\u064A\u0631\u0627\u0646 (\u0623\u0648 \u0628\u0627\u064A\u0631\u0627\u0646) \u0647\u0648 \u0645\u0631\u0643\u0628 \u0639\u0636\u0648\u064A \u062D\u0644\u0642\u064A \u063A\u064A\u0631 \u0645\u062A\u062C\u0627\u0646\u0633 \u0648\u063A\u064A\u0631 \u0645\u0634\u0628\u0639 \u0644\u0647 \u0627\u0644\u0635\u064A\u063A\u0629 \u0627\u0644\u0643\u064A\u0645\u064A\u0627\u0626\u064A\u0629 C5H6O. \u064A\u062A\u0623\u0644\u0641 \u0627\u0644\u0645\u0631\u0643\u0628 \u0628\u0646\u064A\u0648\u064A\u0627\u064B \u0645\u0646 \u062D\u0644\u0642\u0629 \u0633\u062F\u0627\u0633\u064A\u0629 \u062D\u0627\u0648\u064A\u0629 \u0639\u0644\u0649 \u0630\u0631\u0629 \u0623\u0643\u0633\u062C\u064A\u0646 \u0648\u0627\u062D\u062F\u0629 \u0648\u0639\u0644\u0649 \u0631\u0627\u0628\u0637\u062A\u064A\u0646 \u0645\u0636\u0627\u0639\u0641\u062A\u064A\u0646\u061B \u0648\u064A\u0637\u0644\u0642 \u0639\u0644\u0649 \u0645\u0634\u062A\u0642\u0627\u062A\u0647 \u0627\u0633\u0645 \u0628\u064A\u0631\u0627\u0646\u0627\u062A. \u064A\u0648\u062C\u062F \u0647\u0646\u0627\u0643 \u0645\u062A\u0635\u0627\u0648\u063A\u0627\u0646 \u0645\u0646 \u0627\u0644\u0645\u0631\u0643\u0628\u060C \u0648\u0647\u0645\u0627 2H-\u0628\u064A\u0631\u0627\u0646 (\u0623\u0648 \u03B1-\u0628\u064A\u0631\u0627\u0646)\u060C \u062D\u064A\u062B \u062A\u0643\u0648\u0646 \u0645\u062C\u0645\u0648\u0639\u0629 \u0627\u0644\u0645\u064A\u062B\u064A\u0644\u064A\u0646 CH2 \u0641\u064A \u0627\u0644\u0645\u0648\u0642\u0639 2\u060C \u0648\u0627\u0644\u0622\u062E\u0631 \u0647\u0648 4H-\u0628\u064A\u0631\u0627\u0646 (\u0623\u0648 \u03B3-\u0628\u064A\u0631\u0627\u0646)\u060C \u0648\u064A\u0643\u0648\u0646 \u0641\u064A\u0647 \u0627\u0644\u0643\u0631\u0628\u0648\u0646 \u0627\u0644\u0645\u0634\u0628\u0639 \u0641\u064A \u0627\u0644\u0645\u0648\u0642\u0639 4."@ar . "2"^^ . . "Pyran \u00E4r en heterocyklisk ring som best\u00E5r av fem kolatomer och en syreatom och inneh\u00E5ller tv\u00E5 dubbelbindningar. Det finns tv\u00E5 isomerer beroende p\u00E5 dubbelbindningarnas placering. I 2H-pyran sitter det m\u00E4ttade kolet i position 2, medan i 4H-pyran sitter det i position 4. Trots att pyraner sj\u00E4lva har liten betydelse inom kemin \u00E4r m\u00E5nga av dess derivat viktiga biologiska molekyler. 4H-Pyran bildar g\u00E4rna eller . Pyran anv\u00E4nds ocks\u00E5 f\u00F6r den m\u00E4ttade analogen som mer korrekt heter . I denna betydelse, s\u00E5 kallas monosackarider som inneh\u00E5ller ringar med 6 kol f\u00F6r . Allts\u00E5 heter ringvarianten av glukos D-glukopyranos."@sv . "Pyrane"@fr . . . "\u5421\u5583\uFF08Pyran\uFF09\u662F\u542B\u6709\u4E00\u4E2A\u6C27\u539F\u5B50\u7684\u5B8C\u5168\u4E0D\u9971\u548C\u516D\u5143\u6742\u73AF\u5316\u5408\u7269\u3002\u5B83\u6709\u4E24\u4E2A\u53CC\u952E\uFF0C\u6839\u636E\u53CC\u952E\u4F4D\u7F6E\u7684\u4E0D\u540C\uFF0C\u53EF\u4EE5\u6709\u4E24\u4E2A\u5F02\u6784\u4F53\uFF1A2H-\u5421\u5583\u548C4H-\u5421\u5583\u3002 \u5421\u5583\u5E76\u4E0D\u662F\u4E00\u4E2A\u95ED\u5408\u7684\u5171\u8F6D\u4F53\u7CFB\uFF0C\u4F46\u5B83\u7684\u5421\u5576\u5B63\u94F5\u76D0\u7684\u7C7B\u4F3C\u7269\u662F\u4E00\u4E2A\u95ED\u5408\u7684\u5171\u8F6D\u4F53\u7CFB\uFF0C\u6709\u4E00\u5B9A\u7684\u82B3\u9999\u6027\u548C\u7A33\u5B9A\u6027\u3002 \u672A\u53D6\u4EE3\u7684\u5421\u5583\u5728\u81EA\u7136\u754C\u81F3\u4ECA\u5C1A\u672A\u53D1\u73B0\uFF0C\u5176\u81EA\u8EAB\u4EF7\u503C\u4E5F\u4E0D\u5927\uFF0C\u4F46\u5421\u5583\u7684\u884D\u751F\u7269\uFF0C\u5C24\u5176\u662F\u5421\u5583\u916E\uFF0C\u5219\u5E7F\u6CDB\u5B58\u5728\u4E8E\u8BB8\u591A\u5929\u7136\u81EA\u7136\u7269\u8D28\u4E2D\u3002\u82EF\u5E76\u5421\u5583\uFF08\u8272\u70EF\uFF09\u3001\u8272\u916E\u3001\u9999\u8C46\u7D20\u3001\u9EC4\u916E\u3001\u5F02\u9EC4\u916E\u3001\u82B1\u9752\u7D20\u7B49\u7269\u8D28\u90FD\u53EF\u770B\u4F5C\u662F\u5421\u5583\u7684\u884D\u751F\u7269\u3002 \u5421\u5583\u7684\u9971\u548C\u884D\u751F\u7269\u6709\u4E24\u79CD\uFF1A\u4E8C\u6C22\u5421\u5583\u548C\u56DB\u6C22\u5421\u5583\u3002\u56DB\u6C22\u5421\u5583\u662F\u7EC4\u6210\u5421\u5583\u7CD6\u7684\u57FA\u672C\u7ED3\u6784\u3002"@zh . . "Pirano"@es . . . . "Pyraan"@nl . "En qu\u00EDmica el pirano es un compuesto heteroc\u00EDclico formado por cinco \u00E1tomos de carbono y un \u00E1tomo de ox\u00EDgeno y que presenta dos dobles enlaces. La f\u00F3rmula molecular es C5H6O. Existen dos tipos de is\u00F3meros, los cuales difieren en la localizaci\u00F3n de los dobles enlaces. En el 2H-pirano, el carbono saturado est\u00E1 en la posici\u00F3n 2, mientras que en el 4H-pirano se encuentra en la posici\u00F3n 4. El 4H-pirano fue aislado y caracterizado en 1962 v\u00EDa pir\u00F3lisis del 2-acetoxi-3,4-dihidro-2H-pirano.\u200B Se constat\u00F3 que era muy inestable, particularmente en presencia de aire. Aunque los piranos tienen poca importancia en la qu\u00EDmica, una variedad de sus derivados son importantes biomol\u00E9culas, como los . El t\u00E9rmino pirano a menudo tambi\u00E9n se aplica al anillo saturado tetrahidropirano. En este contexto los monosac\u00E1ridos que contienen un anillo hexagonal son conocidos como anillos piranosos. De ah\u00ED que la forma de anillo hexagonal de la D-glucosa sea conocida como D-glucopiranosa."@es . . "\uD53C\uB780 (\uD654\uD569\uBB3C)"@ko . . "\u041F\u0438\u0440\u0430\u043D (\u0432\u0435\u0449\u0435\u0441\u0442\u0432\u043E)"@ru . . . . . "Piran (qu\u00EDmica)"@ca . "Pyran (systematick\u00FD n\u00E1zev oxin) je \u0161esti\u010Dlenn\u00E1 nearomatick\u00E1 heterocyklick\u00E1 slou\u010Denina skl\u00E1daj\u00EDc\u00ED se z p\u011Bti atom\u016F uhl\u00EDku a jednoho atomu kysl\u00EDku, kter\u00E1 m\u00E1 v molekule dv\u011B dvojn\u00E9 vazby. Existuj\u00ED dva izomery pyranu, kter\u00E9 se li\u0161\u00ED um\u00EDst\u011Bn\u00EDm dvojn\u00FDch vazeb. 2H-pyran m\u00E1 nasycen\u00FD uhl\u00EDk v poloze 2, kde\u017Eto 4H-pyran jej m\u00E1 v poloze 4. 4H-pyran byl poprv\u00E9 p\u0159ipraven roku 1962 pyrol\u00FDzou 2-acetoxy-3,4-dihydro-2H-pyranu. Bylo zji\u0161t\u011Bno, \u017Ee je na vzduchu nestabiln\u00ED, doch\u00E1z\u00ED u n\u011Bj k disproporcionaci na odpov\u00EDdaj\u00EDc\u00ED dihydropyran a kationt, kter\u00FD lze snadno hydrolyzovat. P\u0159esto\u017Ee samotn\u00E9 pyrany maj\u00ED minim\u00E1ln\u00ED v\u00FDznam, mnoho jejich deriv\u00E1t\u016F pat\u0159\u00ED k biologicky v\u00FDznamn\u00FDm l\u00E1tk\u00E1m (nap\u0159\u00EDklad ). Ozna\u010Den\u00ED pyran se tak\u00E9 pou\u017E\u00EDv\u00E1 pro analog s nasycen\u00FDm kruhem, kter\u00FD se p\u0159esn\u011Bji naz\u00FDv\u00E1 tetrahydropyran (oxan). Monosacharidy s \u0161esti\u010Dlenn\u00FDm kruhem v cyklick\u00E9 form\u011B se podle toho naz\u00FDvaj\u00ED pyran\u00F3zy."@cs . . "\u041F\u0438\u0440\u0430\u043D (\u0438\u043B\u0438 \u043E\u043A\u0441\u0438\u043D) \u044F\u0432\u043B\u044F\u0435\u0442\u0441\u044F \u0448\u0435\u0441\u0442\u0438\u0447\u043B\u0435\u043D\u043D\u044B\u043C \u0433\u0435\u0442\u0435\u0440\u043E\u0446\u0438\u043A\u043B\u0438\u0447\u0435\u0441\u043A\u0438\u043C, \u043D\u0435\u0430\u0440\u043E\u043C\u0430\u0442\u0438\u0447\u0435\u0441\u043A\u0438\u043C \u043A\u043E\u043B\u044C\u0446\u043E\u043C, \u0441\u043E\u0441\u0442\u043E\u044F\u0449\u0438\u043C \u0438\u0437 \u043F\u044F\u0442\u0438 \u0430\u0442\u043E\u043C\u043E\u0432 \u0443\u0433\u043B\u0435\u0440\u043E\u0434\u0430 \u0438 \u043E\u0434\u043D\u043E\u0433\u043E \u0430\u0442\u043E\u043C\u0430 \u043A\u0438\u0441\u043B\u043E\u0440\u043E\u0434\u0430 \u0438 \u0438\u043C\u0435\u0435\u0442 \u0434\u0432\u0435 \u0434\u0432\u043E\u0439\u043D\u044B\u0435 \u0441\u0432\u044F\u0437\u0438. \u041E\u043D \u0438\u043C\u0435\u0435\u0442 \u0434\u0432\u0430 , \u043A\u043E\u0442\u043E\u0440\u044B\u0435 \u0440\u0430\u0437\u043B\u0438\u0447\u0430\u044E\u0442\u0441\u044F \u0440\u0430\u0441\u043F\u043E\u043B\u043E\u0436\u0435\u043D\u0438\u0435\u043C \u0434\u0432\u043E\u0439\u043D\u044B\u0445 \u0441\u0432\u044F\u0437\u0435\u0439. \u0412 \u03B1-\u043F\u0438\u0440\u0430\u043D\u0435 \u043D\u0430\u0441\u044B\u0449\u0435\u043D\u043D\u044B\u0439 \u0443\u0433\u043B\u0435\u0440\u043E\u0434 \u043D\u0430\u0445\u043E\u0434\u0438\u0442\u0441\u044F \u0432 \u043F\u043E\u0437\u0438\u0446\u0438\u0438 2, \u0430 \u0432 \u03B3-\u043F\u0438\u0440\u0430\u043D\u0435 \u2014 \u0432 \u043F\u043E\u0437\u0438\u0446\u0438\u0438 4.\u03B3-\u043F\u0438\u0440\u0430\u043D \u0431\u044B\u043B \u0432\u043F\u0435\u0440\u0432\u044B\u0435 \u043E\u043F\u0438\u0441\u0430\u043D \u0432 1962 \u0433\u043E\u0434\u0443 \u043F\u043E\u0441\u043B\u0435 \u043F\u0438\u0440\u043E\u043B\u0438\u0437\u0430 2-\u0430\u0446\u0435\u0442\u043E\u043A\u0441\u0438-3,4-\u0434\u0438\u0433\u0438\u0434\u0440\u043E-\u03B1-\u043F\u0438\u0440\u0430\u043D\u0435. \u042F\u0432\u043B\u044F\u0435\u0442\u0441\u044F \u043D\u0435\u0441\u0442\u0430\u0431\u0438\u043B\u044C\u043D\u044B\u043C, \u0447\u0430\u0441\u0442\u0438\u0447\u043D\u043E \u043F\u0440\u0438 \u043A\u043E\u043D\u0442\u0430\u043A\u0442\u0435 \u0441 \u0432\u043E\u0437\u0434\u0443\u0445\u043E\u043C \u03B3-\u043F\u0438\u0440\u0430\u043D \u043B\u0435\u0433\u043A\u043E \u0440\u0430\u0441\u043F\u0430\u0434\u0430\u0435\u0442\u0441\u044F \u043D\u0430 \u0434\u0438\u0433\u0438\u0434\u0440\u043E\u043F\u0438\u0440\u0430\u043D \u0438 , \u043A\u043E\u0442\u043E\u0440\u044B\u0439 \u043B\u0435\u0433\u043A\u043E \u0433\u0438\u0434\u0440\u043E\u043B\u0438\u0437\u0443\u0435\u0442\u0441\u044F \u0432 \u0432\u043E\u0434\u043D\u043E\u0439 \u0441\u0440\u0435\u0434\u0435."@ru . . . "Pyrane"@de . "Piran"@in . "Pirano a\u016D C5H6O estas estas sesmembra heterocikla kombina\u0135o, ne-aromata-ringo, konsistanta je kvin karbonatomoj kaj unu oksigenatomo kaj enhavanta du duoblajn ligilojn. Ekzistas du geometriaj izomeroj kun la sama kemia formulo kies diferencoj sidas sur la loko de la duoblaj ligiloj (2H-pirano, kaj 4H-pirano). 4H-pirano estis unue sintezita kaj karakterizita en 1962 kaj oni malkovris ke \u011Di estas tre malstabila. 4H-pirano, cetere, facile disproporcias al la saturitaj korespondaj duhidropirano kaj piraniliuma jono. Kvankam ili ne estas tiel signifoplenaj en kemio, biologie multaj el \u011Diaj deriva\u0135oj plenumas gravajn reakciojn, tiaj kial la piranoflavonoidoj. La vorto pirano ofte apliki\u011Das al la saturitringa analoga\u0135o, pli adekvate raportita kiel kvarhidropirano a\u016D oksano. Cetere, la unusakaridoj enhavantaj sesmembra ringosistemo estas konataj kiel piranozoj."@eo . "Pyraan is een niet-aromatische heterocyclische zuurstofverbinding met daarin twee dubbele bindingen en heeft twee constitutionele isomeren, 2H-pyraan en 4H-pyraan. De verbindingen zijn onstabiel onder normale omstandigheden en worden dan ook weinig gebruikt in de organische chemie. De verbinding is verwant met dihydropyraan en tetrahydropyraan, waarin respectievelijk \u00E9\u00E9n of twee van de dubbele bindingen zijn gehydrogeneerd."@nl . . . . "3102"^^ . . . . "Piran \u2013 organiczny zwi\u0105zek chemiczny z grupy nienasyconych eter\u00F3w cyklicznych o sze\u015Bciocz\u0142onowym pier\u015Bcieniu heterocyklicznym. Mo\u017Ce tworzy\u0107 dwa izomery, r\u00F3\u017Cni\u0105ce si\u0119 uk\u0142adem wi\u0105za\u0144 podw\u00F3jnych:"@pl . . . "\uD53C\uB780(\uC601\uC5B4: pyran)\uC740 5\uAC1C\uC758 \uD0C4\uC18C \uC6D0\uC790\uC640 1\uAC1C\uC758 \uC0B0\uC18C \uC6D0\uC790\uB85C \uAD6C\uC131\uB41C 2\uAC1C\uC758 \uC774\uC911 \uACB0\uD569\uC744 \uAC00\uC9C0\uACE0 \uC788\uB294 6\uC6D0\uC790 \uD5E4\uD14C\uB85C\uACE0\uB9AC \uD654\uD569\uBB3C\uC774\uB2E4. \uD53C\uB780\uC740 \uC625\uC2E0(\uC601\uC5B4: oxine)\uC774\uB77C\uACE0\uB3C4 \uBD88\uB9AC\uBA70, \uBD84\uC790\uC2DD\uC740 C5H6O\uC774\uB2E4. \uC774\uC911 \uACB0\uD569\uC758 \uC704\uCE58\uC5D0 \uB530\uB77C 2\uAC00\uC9C0 \uD53C\uB780 \uC774\uC131\uC9C8\uCCB4\uAC00 \uC874\uC7AC\uD55C\uB2E4. 2H-\uD53C\uB780\uC5D0\uC11C \uD3EC\uD654 \uD0C4\uC18C\uB294 2\uBC88 \uC704\uCE58\uC5D0 \uC874\uC7AC\uD558\uBA70, 4H-\uD53C\uB780\uC5D0\uC11C \uD3EC\uD654 \uD0C4\uC18C\uB294 4\uBC88 \uC704\uCE58\uC5D0 \uC874\uC7AC\uD55C\uB2E4. 4H-\uD53C\uB780\uC740 2-\uC544\uC138\uD1A1\uC2DC-3,4-\uB2E4\uC774\uD558\uC774\uB4DC\uB85C-2H-\uD53C\uB780\uC758 \uC5F4\uBD84\uD574\uB97C \uD1B5\uD574 1962\uB144\uC5D0 \uCC98\uC74C\uC73C\uB85C \uBD84\uB9AC\uB418\uACE0, \uD2B9\uC9D5\uC9C0\uC5B4\uC84C\uB2E4. 4H-\uD53C\uB780\uC740 \uD2B9\uD788 \uACF5\uAE30\uC758 \uC874\uC7AC \uD558\uC5D0\uC11C \uB108\uBB34 \uBD88\uC548\uC815\uD55C \uAC83\uC73C\uB85C \uBC1D\uD600\uC84C\uB2E4. 4H-\uD53C\uB780\uC740 \uC0C1\uC751\uD558\uB294 \uBC0F \uC774\uC628\uC73C\uB85C \uC27D\uAC8C \uBD88\uADE0\uD615\uD654\uB418\uBA70, \uC774\uB294 \uC218\uC131 \uB9E4\uC9C8\uC5D0\uC11C \uC27D\uAC8C \uAC00\uC218\uBD84\uD574\uB41C\uB2E4. \uD53C\uB780 \uC790\uCCB4\uB294 \uD654\uD559\uC5D0\uC11C \uAC70\uC758 \uC758\uBBF8\uAC00 \uC5C6\uC9C0\uB9CC, \uD53C\uB780\uC758 \uB9CE\uC740 \uC720\uB3C4\uCCB4\uB4E4\uC740 \uC640 \uAC19\uC740 \uC0DD\uBB3C\uD559\uC801\uC73C\uB85C \uC911\uC694\uD55C \uBD84\uC790\uC774\uB2E4. \uD53C\uB780\uC774\uB77C\uB294 \uC6A9\uC5B4\uB294 \uC885\uC885 \uD3EC\uD654\uB41C \uACE0\uB9AC \uC720\uC0AC\uCCB4\uC5D0\uB3C4 \uC801\uC6A9\uB418\uB294\uB370, \uC774\uB294 (\uC625\uC138\uC778)\uC73C\uB85C \uBCF4\uB2E4 \uC801\uC808\uD558\uAC8C \uC9C0\uCE6D\uB41C\uB2E4. \uC774\uC640 \uAD00\uB828\uD558\uC5EC 6\uC6D0\uC790 \uACE0\uB9AC\uB97C \uAC00\uC9C0\uACE0 \uC788\uB294 \uB2E8\uB2F9\uB958\uB294 \uD53C\uB77C\uB178\uC2A4\uB77C\uACE0 \uD55C\uB2E4."@ko . . . . . . "2H-Pyran, 4H-Pyran"@en . . . . "Dalam kimia, piran adalah cincin heterosiklik beranggota enam yang terdiri dari lima atom karbon dan sebuah atom oksigen dan mengandung dua ikatan rangkap dua. Rumus molekulnya adalah C5H6O. Terdapat dua isomer piran yang berbeda tergantung pada lokasi ikatan rangkapnya. Pada 2H-piran, karbon jenuh terdapat pada posisi 2, sedangkan pada 4H-piran, karbon jenuhnya terdapat pada posisi 4. Walaupun piran sendiri tidak begitu penting dalam kimia, terdapat bermacam-macam turunan piran yang merupakan molekul biologis yang penting. 4H-Piran dengan mudah berdisproporsionasi menjadi dan ion yang sangat mudah dihirolisis pada media larutan. Istilah piran juga sering digunakan untuk analog cincin jenuh yang lebih tepatnya dirujuk sebagai tetrahidropiran. Dalam hal ini, monosakarida yang megandung sistem cincin beranggota enam dikenal sebagai . Oleh karena itu, bentuk cincin beranggota enam glukosa juga dikenal sebagai D-glukopiranosa."@in . . "Pirano"@pt . . "In chimica, il pirano \u00E8 un composto eterociclico esa-atomico non aromatico in cui l'unico eteroatomo \u00E8 rappresentato dall'ossigeno. Il composto ha formula molecolare C5H6O, peso molecolare 82,10 e possiede due doppi legami. Esistono due forme isomere del pirano che differiscono per la posizione dei doppi legami. Nel 2H-pirano il carbonio saturo \u00E8 quello in posizione 2, mentre il 4H-pirano possiede il carbonio saturo in posizione 4. Il 4H-pirano fu isolato e caratterizzato per la prima volta nel 1962 attraverso la pirolisi del 2-acetossi-3,4-diidro-2H-pirano. Il composto risult\u00F2 estremamente instabile, specialmente in presenza di aria; infatti esso disproporziona facilmente in diidropirano e ione pirilio, che viene rapidamente idrolizzato in ambiente acquoso. Sebbene i pirani non abbiano molte applicazioni pratiche in chimica, la loro importanza risiede nell'essere precursori di diverse importanti biomolecole quali i flavonoidi. Il termine pirano viene spesso riferito anche ai monosaccaridi che in seguito a ciclizzazione (forma emiacetalica) formano un anello esa-atomico analogo alla forma satura del pirano. Tali cicli vengono definiti piranosici."@it . . . . . . . "El piran \u00E9s un compost heteroc\u00EDclic consistent en un anell no arom\u00E0tic de sis membres insaturat format per un \u00E0tom d'oxigen i cinc de carboni i que cont\u00E9 dos dobles enlla\u00E7os. La seva f\u00F3rmula molecular \u00E9s C\u2085H\u2086O. Hi ha dos is\u00F2mers de piran que difereixen per la localitzaci\u00F3 dels dobles enlla\u00E7os. En el 2H-piran, el carboni saturat \u00E9s a la posici\u00F3 2, mentre que en el 4H-piran, el carboni saturat \u00E9s a la posici\u00F3 4. Malgrat que els pirans tenen poca significaci\u00F3 en qu\u00EDmica, molts dels seus derivats s\u00F3n mol\u00E8cules biol\u00F2giques importants, com ho s\u00F3n els . El terme piran sovint tamb\u00E9 s'aplica al seu an\u00E0leg d'anell saturat, que s'anomena m\u00E9s pr\u00F2piament o ox\u00E0. En aquest context, els monosac\u00E0rids que contenen un sistema d'anell de sis membres es coneixen com a piranoses."@ca . . . . . "2H-Oxine, 4H-Oxine"@en . "75"^^ . "75"^^ . "\u30D4\u30E9\u30F3 (pyran) \u306F\u3001\u5316\u5B66\u5F0F C5H6O \u3067\u8868\u3055\u308C\u308B\u30011\u500B\u306E\u9178\u7D20\u539F\u5B50\u3092\u542B\u30806\u54E1\u74B0\u306E\u30A8\u30FC\u30C6\u30EB\u5316\u5408\u7269\u3067\u3042\u308B\u3002\u4E8C\u91CD\u7D50\u5408\u306E\u4F4D\u7F6E\u304C\u7570\u306A\u308B\u7570\u6027\u4F53\u3068\u3057\u30662H-\u30D4\u30E9\u30F3\u30684H-\u30D4\u30E9\u30F3\u306E2\u7A2E\u304C\u5B58\u5728\u3059\u308B\u30022H-\u30D4\u30E9\u30F3\u3067\u306F\u98FD\u548C\u70AD\u7D20\u304C2\u4F4D\u306B\u30014H-\u30D4\u30E9\u30F3\u3067\u306F4\u4F4D\u306B\u3042\u308B\u3002 \u5316\u5B66\u3067\u306F\u6BCD\u4F53\u306E\u30D4\u30E9\u30F3\u306F\u305D\u308C\u307B\u3069\u91CD\u8981\u3067\u306F\u306A\u3044\u304C\u3001\u3055\u307E\u3056\u307E\u306A\u8A98\u5C0E\u4F53\u304C\u751F\u4F53\u7269\u8CEA\u3068\u3057\u3066\u77E5\u3089\u308C\u3066\u3044\u308B\u3002 \u300C\u30D4\u30E9\u30F3\u300D\u306E\u8A9E\u306F\u3088\u308A\u98FD\u548C\u5EA6\u306E\u9AD8\u3044\u985E\u7E01\u4F53\u3067\u3042\u308B\u30C6\u30C8\u30E9\u30D2\u30C9\u30ED\u30D4\u30E9\u30F3\u69CB\u9020\u3092\u8868\u3059\u306E\u306B\u4F7F\u308F\u308C\u308B\u3053\u3068\u304C\u3042\u308B\u3002\u305F\u3068\u3048\u30706\u54E1\u74B0\u306E\u5358\u7CD6\u306F\u30D4\u30E9\u30CE\u30FC\u30B9\u3068\u547C\u3070\u308C\u308B\u3002\u3059\u306A\u308F\u3061\u3001D-\u30B0\u30EB\u30B3\u30FC\u30B9\u306E6\u54E1\u74B0\u69CB\u9020\u306E\u5225\u540D\u306FD-\u30B0\u30EB\u30B3\u30D4\u30E9\u30CE\u30FC\u30B9\u3067\u3042\u308B\u3002"@ja . . . "Pyran3d.png"@en . . "In chimica, il pirano \u00E8 un composto eterociclico esa-atomico non aromatico in cui l'unico eteroatomo \u00E8 rappresentato dall'ossigeno. Il composto ha formula molecolare C5H6O, peso molecolare 82,10 e possiede due doppi legami. Esistono due forme isomere del pirano che differiscono per la posizione dei doppi legami. Nel 2H-pirano il carbonio saturo \u00E8 quello in posizione 2, mentre il 4H-pirano possiede il carbonio saturo in posizione 4."@it . "Pirano"@eo . "1105138901"^^ . . "\u0628\u064A\u0631\u0627\u0646"@ar . "Pyran"@en . . "\u30D4\u30E9\u30F3 (\u5316\u5B66)"@ja . "\u5421\u5583"@zh . . . "Pyran"@sv . "En chimie, un noyau pyrane est un anneau h\u00E9t\u00E9rocycle \u00E0 six \u00E9l\u00E9ments constitu\u00E9 de cinq atomes de carbone et un d'oxyg\u00E8ne, et contenant deux doubles liaisons. La formule brute est C5H6O. Il existe deux isom\u00E8res du pyrane qui diff\u00E8rent par la position de la double liaison carbone-carbone. Dans le 2H-pyrane, les doubles liaisons sont en position 2 et 4. Dans le 4H-pyrane, elles sont en position 2 et 5. Bien que les pyranes par eux-m\u00EAmes aient peu de signification en chimie, de nombreuses mol\u00E9cules d\u00E9riv\u00E9es sont importantes en biologie. Le terme de \u00AB pyrane \u00BB est souvent appliqu\u00E9 au noyau satur\u00E9 analogue qui est plus proprement appel\u00E9 \u00AB t\u00E9trahydropyrane \u00BB dans la famille des oxanes. Dans ce contexte, les monosaccharides contenant un noyau \u00E0 six \u00E9l\u00E9ments sont d\u00E9nomm\u00E9s \u00AB pyranoses \u00BB. De m\u00EAme, la forme \u00E0 noyau pyrane du glucose est connue sous le nom de \u00AB D-glucopyranose \u00BB."@fr . . "En qu\u00EDmica el pirano es un compuesto heteroc\u00EDclico formado por cinco \u00E1tomos de carbono y un \u00E1tomo de ox\u00EDgeno y que presenta dos dobles enlaces. La f\u00F3rmula molecular es C5H6O. Existen dos tipos de is\u00F3meros, los cuales difieren en la localizaci\u00F3n de los dobles enlaces. En el 2H-pirano, el carbono saturado est\u00E1 en la posici\u00F3n 2, mientras que en el 4H-pirano se encuentra en la posici\u00F3n 4. El 4H-pirano fue aislado y caracterizado en 1962 v\u00EDa pir\u00F3lisis del 2-acetoxi-3,4-dihidro-2H-pirano.\u200B Se constat\u00F3 que era muy inestable, particularmente en presencia de aire."@es . . . . "Pyran (systematick\u00FD n\u00E1zev oxin) je \u0161esti\u010Dlenn\u00E1 nearomatick\u00E1 heterocyklick\u00E1 slou\u010Denina skl\u00E1daj\u00EDc\u00ED se z p\u011Bti atom\u016F uhl\u00EDku a jednoho atomu kysl\u00EDku, kter\u00E1 m\u00E1 v molekule dv\u011B dvojn\u00E9 vazby. Existuj\u00ED dva izomery pyranu, kter\u00E9 se li\u0161\u00ED um\u00EDst\u011Bn\u00EDm dvojn\u00FDch vazeb. 2H-pyran m\u00E1 nasycen\u00FD uhl\u00EDk v poloze 2, kde\u017Eto 4H-pyran jej m\u00E1 v poloze 4. 4H-pyran byl poprv\u00E9 p\u0159ipraven roku 1962 pyrol\u00FDzou 2-acetoxy-3,4-dihydro-2H-pyranu. Bylo zji\u0161t\u011Bno, \u017Ee je na vzduchu nestabiln\u00ED, doch\u00E1z\u00ED u n\u011Bj k disproporcionaci na odpov\u00EDdaj\u00EDc\u00ED dihydropyran a kationt, kter\u00FD lze snadno hydrolyzovat."@cs . "In chemistry, pyran, or oxine, is a six-membered heterocyclic, non-aromatic ring, consisting of five carbon atoms and one oxygen atom and containing two double bonds. The molecular formula is C5H6O. There are two isomers of pyran that differ by the location of the double bonds. In 2H-pyran, the saturated carbon is at position 2, whereas, in 4H-pyran, the saturated carbon is at position 4. 4H-Pyran was first isolated and characterized in 1962 via pyrolysis of 2-acetoxy-3,4-dihydro-2H-pyran. It was found too unstable, particularly in the presence of air. 4H-pyran easily disproportionates to the corresponding dihydropyran and the pyrylium ion, which is easily hydrolyzed in aqueous medium. Although the pyrans themselves have little significance in chemistry, many of their derivatives are important biological molecules, such as the pyranoflavonoids. The term pyran is also often applied to the saturated ring analog, which is more properly referred to as tetrahydropyran (oxane). In this context, the monosaccharides containing a six-membered ring system are known as pyranoses."@en . . . . . "Em qu\u00EDmica, um pirano \u00E9 um heteroc\u00EDclico de anel de seis membros consistindo de cinco \u00E1tomos de carbono e um \u00E1tomo de oxig\u00EAnio e contendo duas liga\u00E7\u00F5es duplas. A f\u00F3rmula molecular \u00E9 C5H6O. Existem dois is\u00F4meros de pirano que diferem pela localiza\u00E7\u00E3o das ligas duplas. Em 2H-pirano, o carbono saturado est\u00E1 na posi\u00E7\u00E3o 2, enquanto no 4H-pirano, o carbono saturado est\u00E1 na posi\u00E7\u00E3o 4. Uma piranose \u00E9 uma das formas que uma aldo-hexose assume, formando um anel hexagonal (com cinco carbonos e um oxig\u00EAnio); o nome deriva do pirano."@pt . "\u5421\u5583\uFF08Pyran\uFF09\u662F\u542B\u6709\u4E00\u4E2A\u6C27\u539F\u5B50\u7684\u5B8C\u5168\u4E0D\u9971\u548C\u516D\u5143\u6742\u73AF\u5316\u5408\u7269\u3002\u5B83\u6709\u4E24\u4E2A\u53CC\u952E\uFF0C\u6839\u636E\u53CC\u952E\u4F4D\u7F6E\u7684\u4E0D\u540C\uFF0C\u53EF\u4EE5\u6709\u4E24\u4E2A\u5F02\u6784\u4F53\uFF1A2H-\u5421\u5583\u548C4H-\u5421\u5583\u3002 \u5421\u5583\u5E76\u4E0D\u662F\u4E00\u4E2A\u95ED\u5408\u7684\u5171\u8F6D\u4F53\u7CFB\uFF0C\u4F46\u5B83\u7684\u5421\u5576\u5B63\u94F5\u76D0\u7684\u7C7B\u4F3C\u7269\u662F\u4E00\u4E2A\u95ED\u5408\u7684\u5171\u8F6D\u4F53\u7CFB\uFF0C\u6709\u4E00\u5B9A\u7684\u82B3\u9999\u6027\u548C\u7A33\u5B9A\u6027\u3002 \u672A\u53D6\u4EE3\u7684\u5421\u5583\u5728\u81EA\u7136\u754C\u81F3\u4ECA\u5C1A\u672A\u53D1\u73B0\uFF0C\u5176\u81EA\u8EAB\u4EF7\u503C\u4E5F\u4E0D\u5927\uFF0C\u4F46\u5421\u5583\u7684\u884D\u751F\u7269\uFF0C\u5C24\u5176\u662F\u5421\u5583\u916E\uFF0C\u5219\u5E7F\u6CDB\u5B58\u5728\u4E8E\u8BB8\u591A\u5929\u7136\u81EA\u7136\u7269\u8D28\u4E2D\u3002\u82EF\u5E76\u5421\u5583\uFF08\u8272\u70EF\uFF09\u3001\u8272\u916E\u3001\u9999\u8C46\u7D20\u3001\u9EC4\u916E\u3001\u5F02\u9EC4\u916E\u3001\u82B1\u9752\u7D20\u7B49\u7269\u8D28\u90FD\u53EF\u770B\u4F5C\u662F\u5421\u5583\u7684\u884D\u751F\u7269\u3002 \u5421\u5583\u7684\u9971\u548C\u884D\u751F\u7269\u6709\u4E24\u79CD\uFF1A\u4E8C\u6C22\u5421\u5583\u548C\u56DB\u6C22\u5421\u5583\u3002\u56DB\u6C22\u5421\u5583\u662F\u7EC4\u6210\u5421\u5583\u7CD6\u7684\u57FA\u672C\u7ED3\u6784\u3002"@zh . "\u30D4\u30E9\u30F3 (pyran) \u306F\u3001\u5316\u5B66\u5F0F C5H6O \u3067\u8868\u3055\u308C\u308B\u30011\u500B\u306E\u9178\u7D20\u539F\u5B50\u3092\u542B\u30806\u54E1\u74B0\u306E\u30A8\u30FC\u30C6\u30EB\u5316\u5408\u7269\u3067\u3042\u308B\u3002\u4E8C\u91CD\u7D50\u5408\u306E\u4F4D\u7F6E\u304C\u7570\u306A\u308B\u7570\u6027\u4F53\u3068\u3057\u30662H-\u30D4\u30E9\u30F3\u30684H-\u30D4\u30E9\u30F3\u306E2\u7A2E\u304C\u5B58\u5728\u3059\u308B\u30022H-\u30D4\u30E9\u30F3\u3067\u306F\u98FD\u548C\u70AD\u7D20\u304C2\u4F4D\u306B\u30014H-\u30D4\u30E9\u30F3\u3067\u306F4\u4F4D\u306B\u3042\u308B\u3002 \u5316\u5B66\u3067\u306F\u6BCD\u4F53\u306E\u30D4\u30E9\u30F3\u306F\u305D\u308C\u307B\u3069\u91CD\u8981\u3067\u306F\u306A\u3044\u304C\u3001\u3055\u307E\u3056\u307E\u306A\u8A98\u5C0E\u4F53\u304C\u751F\u4F53\u7269\u8CEA\u3068\u3057\u3066\u77E5\u3089\u308C\u3066\u3044\u308B\u3002 \u300C\u30D4\u30E9\u30F3\u300D\u306E\u8A9E\u306F\u3088\u308A\u98FD\u548C\u5EA6\u306E\u9AD8\u3044\u985E\u7E01\u4F53\u3067\u3042\u308B\u30C6\u30C8\u30E9\u30D2\u30C9\u30ED\u30D4\u30E9\u30F3\u69CB\u9020\u3092\u8868\u3059\u306E\u306B\u4F7F\u308F\u308C\u308B\u3053\u3068\u304C\u3042\u308B\u3002\u305F\u3068\u3048\u30706\u54E1\u74B0\u306E\u5358\u7CD6\u306F\u30D4\u30E9\u30CE\u30FC\u30B9\u3068\u547C\u3070\u308C\u308B\u3002\u3059\u306A\u308F\u3061\u3001D-\u30B0\u30EB\u30B3\u30FC\u30B9\u306E6\u54E1\u74B0\u69CB\u9020\u306E\u5225\u540D\u306FD-\u30B0\u30EB\u30B3\u30D4\u30E9\u30CE\u30FC\u30B9\u3067\u3042\u308B\u3002"@ja . . "Dalam kimia, piran adalah cincin heterosiklik beranggota enam yang terdiri dari lima atom karbon dan sebuah atom oksigen dan mengandung dua ikatan rangkap dua. Rumus molekulnya adalah C5H6O. Terdapat dua isomer piran yang berbeda tergantung pada lokasi ikatan rangkapnya. Pada 2H-piran, karbon jenuh terdapat pada posisi 2, sedangkan pada 4H-piran, karbon jenuhnya terdapat pada posisi 4."@in . . . . . "Pyraan is een niet-aromatische heterocyclische zuurstofverbinding met daarin twee dubbele bindingen en heeft twee constitutionele isomeren, 2H-pyraan en 4H-pyraan. De verbindingen zijn onstabiel onder normale omstandigheden en worden dan ook weinig gebruikt in de organische chemie. De verbinding is verwant met dihydropyraan en tetrahydropyraan, waarin respectievelijk \u00E9\u00E9n of twee van de dubbele bindingen zijn gehydrogeneerd."@nl . "2"^^ . "Pirano (chimica)"@it . . "En chimie, un noyau pyrane est un anneau h\u00E9t\u00E9rocycle \u00E0 six \u00E9l\u00E9ments constitu\u00E9 de cinq atomes de carbone et un d'oxyg\u00E8ne, et contenant deux doubles liaisons. La formule brute est C5H6O. Il existe deux isom\u00E8res du pyrane qui diff\u00E8rent par la position de la double liaison carbone-carbone. Dans le 2H-pyrane, les doubles liaisons sont en position 2 et 4. Dans le 4H-pyrane, elles sont en position 2 et 5. Bien que les pyranes par eux-m\u00EAmes aient peu de signification en chimie, de nombreuses mol\u00E9cules d\u00E9riv\u00E9es sont importantes en biologie."@fr . "\u0628\u064A\u0631\u0627\u0646 (\u0623\u0648 \u0628\u0627\u064A\u0631\u0627\u0646) \u0647\u0648 \u0645\u0631\u0643\u0628 \u0639\u0636\u0648\u064A \u062D\u0644\u0642\u064A \u063A\u064A\u0631 \u0645\u062A\u062C\u0627\u0646\u0633 \u0648\u063A\u064A\u0631 \u0645\u0634\u0628\u0639 \u0644\u0647 \u0627\u0644\u0635\u064A\u063A\u0629 \u0627\u0644\u0643\u064A\u0645\u064A\u0627\u0626\u064A\u0629 C5H6O. \u064A\u062A\u0623\u0644\u0641 \u0627\u0644\u0645\u0631\u0643\u0628 \u0628\u0646\u064A\u0648\u064A\u0627\u064B \u0645\u0646 \u062D\u0644\u0642\u0629 \u0633\u062F\u0627\u0633\u064A\u0629 \u062D\u0627\u0648\u064A\u0629 \u0639\u0644\u0649 \u0630\u0631\u0629 \u0623\u0643\u0633\u062C\u064A\u0646 \u0648\u0627\u062D\u062F\u0629 \u0648\u0639\u0644\u0649 \u0631\u0627\u0628\u0637\u062A\u064A\u0646 \u0645\u0636\u0627\u0639\u0641\u062A\u064A\u0646\u061B \u0648\u064A\u0637\u0644\u0642 \u0639\u0644\u0649 \u0645\u0634\u062A\u0642\u0627\u062A\u0647 \u0627\u0633\u0645 \u0628\u064A\u0631\u0627\u0646\u0627\u062A. \u064A\u0648\u062C\u062F \u0647\u0646\u0627\u0643 \u0645\u062A\u0635\u0627\u0648\u063A\u0627\u0646 \u0645\u0646 \u0627\u0644\u0645\u0631\u0643\u0628\u060C \u0648\u0647\u0645\u0627 2H-\u0628\u064A\u0631\u0627\u0646 (\u0623\u0648 \u03B1-\u0628\u064A\u0631\u0627\u0646)\u060C \u062D\u064A\u062B \u062A\u0643\u0648\u0646 \u0645\u062C\u0645\u0648\u0639\u0629 \u0627\u0644\u0645\u064A\u062B\u064A\u0644\u064A\u0646 CH2 \u0641\u064A \u0627\u0644\u0645\u0648\u0642\u0639 2\u060C \u0648\u0627\u0644\u0622\u062E\u0631 \u0647\u0648 4H-\u0628\u064A\u0631\u0627\u0646 (\u0623\u0648 \u03B3-\u0628\u064A\u0631\u0627\u0646)\u060C \u0648\u064A\u0643\u0648\u0646 \u0641\u064A\u0647 \u0627\u0644\u0643\u0631\u0628\u0648\u0646 \u0627\u0644\u0645\u0634\u0628\u0639 \u0641\u064A \u0627\u0644\u0645\u0648\u0642\u0639 4."@ar . . "4"^^ . "Pirano a\u016D C5H6O estas estas sesmembra heterocikla kombina\u0135o, ne-aromata-ringo, konsistanta je kvin karbonatomoj kaj unu oksigenatomo kaj enhavanta du duoblajn ligilojn. Ekzistas du geometriaj izomeroj kun la sama kemia formulo kies diferencoj sidas sur la loko de la duoblaj ligiloj (2H-pirano, kaj 4H-pirano). La vorto pirano ofte apliki\u011Das al la saturitringa analoga\u0135o, pli adekvate raportita kiel kvarhidropirano a\u016D oksano. Cetere, la unusakaridoj enhavantaj sesmembra ringosistemo estas konataj kiel piranozoj."@eo . . "Piran (zwi\u0105zek chemiczny)"@pl . . . "2"^^ . . "Pyran \u00E4r en heterocyklisk ring som best\u00E5r av fem kolatomer och en syreatom och inneh\u00E5ller tv\u00E5 dubbelbindningar. Det finns tv\u00E5 isomerer beroende p\u00E5 dubbelbindningarnas placering. I 2H-pyran sitter det m\u00E4ttade kolet i position 2, medan i 4H-pyran sitter det i position 4. Trots att pyraner sj\u00E4lva har liten betydelse inom kemin \u00E4r m\u00E5nga av dess derivat viktiga biologiska molekyler. 4H-Pyran bildar g\u00E4rna eller ."@sv . . "In chemistry, pyran, or oxine, is a six-membered heterocyclic, non-aromatic ring, consisting of five carbon atoms and one oxygen atom and containing two double bonds. The molecular formula is C5H6O. There are two isomers of pyran that differ by the location of the double bonds. In 2H-pyran, the saturated carbon is at position 2, whereas, in 4H-pyran, the saturated carbon is at position 4. Although the pyrans themselves have little significance in chemistry, many of their derivatives are important biological molecules, such as the pyranoflavonoids."@en . . . "El piran \u00E9s un compost heteroc\u00EDclic consistent en un anell no arom\u00E0tic de sis membres insaturat format per un \u00E0tom d'oxigen i cinc de carboni i que cont\u00E9 dos dobles enlla\u00E7os. La seva f\u00F3rmula molecular \u00E9s C\u2085H\u2086O. Hi ha dos is\u00F2mers de piran que difereixen per la localitzaci\u00F3 dels dobles enlla\u00E7os. En el 2H-piran, el carboni saturat \u00E9s a la posici\u00F3 2, mentre que en el 4H-piran, el carboni saturat \u00E9s a la posici\u00F3 4. Malgrat que els pirans tenen poca significaci\u00F3 en qu\u00EDmica, molts dels seus derivats s\u00F3n mol\u00E8cules biol\u00F2giques importants, com ho s\u00F3n els ."@ca . "4"^^ . "808932"^^ . . . . "Piran \u2013 organiczny zwi\u0105zek chemiczny z grupy nienasyconych eter\u00F3w cyklicznych o sze\u015Bciocz\u0142onowym pier\u015Bcieniu heterocyklicznym. Mo\u017Ce tworzy\u0107 dwa izomery, r\u00F3\u017Cni\u0105ce si\u0119 uk\u0142adem wi\u0105za\u0144 podw\u00F3jnych:"@pl . . . .