学科分类
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1 个结果
  • 简介:Bothdirectandsensitizedirradiationsoftheendotitlecompoundleadtoadecarbony-lationproduct,4-isopropylbiphenyl,viaNorrishType1reaction,whiletheexoisomergivesacarbeneintermediateandsubsequentlyformaldehyde2-biphenylylisopropylhemiacetal,whichinturngraduallydecomposestodimethylphenylbenzylalcoholatroomtemperature.Thetripletpathwaydominatesthephotoreactionoftheexoisomer.Thesingletandtripletlifetimesofthereactantarefoundtobe0.29nsand5.4μs,respectively.~3(n,π~*),~1(n,π~*),~3(π,π~*)electronicconfigurationsoftheexoisomerand~3(π,π~*)oftheendoisomerarephotochemicallyactive,but~1(π,π~*)oftheendoisomershowsindirectphotoreactivity.

  • 标签: isopropyl formaldehyde SINGLET reactant sensitized HEXANE