{"title":"脂肪族醛在溶液中的光化学反应","authors":"J. Coyle","doi":"10.1039/J29710002254","DOIUrl":null,"url":null,"abstract":"Simple aliphatic aldehydes with a C4 or longer chain undergo ‘type 2’ photoelimination and photocyclisation as major reactions in solution. Both singlet and triplet nπ* states are direct precursors to products in these reactions. Quenching studies show that the triplet lifetime, governed largely by the rate constant for intramolecular hydrogen-abstraction, varies with the substituent at position 4 in the chain.","PeriodicalId":17268,"journal":{"name":"Journal of The Chemical Society B: Physical Organic","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Photochemical reactions of aliphatic aldehydes in solution\",\"authors\":\"J. Coyle\",\"doi\":\"10.1039/J29710002254\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Simple aliphatic aldehydes with a C4 or longer chain undergo ‘type 2’ photoelimination and photocyclisation as major reactions in solution. Both singlet and triplet nπ* states are direct precursors to products in these reactions. Quenching studies show that the triplet lifetime, governed largely by the rate constant for intramolecular hydrogen-abstraction, varies with the substituent at position 4 in the chain.\",\"PeriodicalId\":17268,\"journal\":{\"name\":\"Journal of The Chemical Society B: Physical Organic\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1971-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The Chemical Society B: Physical Organic\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1039/J29710002254\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The Chemical Society B: Physical Organic","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/J29710002254","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Photochemical reactions of aliphatic aldehydes in solution
Simple aliphatic aldehydes with a C4 or longer chain undergo ‘type 2’ photoelimination and photocyclisation as major reactions in solution. Both singlet and triplet nπ* states are direct precursors to products in these reactions. Quenching studies show that the triplet lifetime, governed largely by the rate constant for intramolecular hydrogen-abstraction, varies with the substituent at position 4 in the chain.
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