📜2-氯甲基四氢呋喃置于lindlar'S Catalyst Lithium Amide,氢气体系中,用 正己烷,氨 作为反应溶剂,化学反应 1.0H,反应生成 顺-4-己烯-1-醇
参考文献:Regiochemistry And Stereochemistry Of Intramolecular [2+2] Photocycloaddition Of Carbon-Carbon Double Bonds To Cyclohexenones
标题:Regiochemistry And Stereochemistry Of Intramolecular [2+2] Photocycloaddition Of Carbon-Carbon Double Bonds To Cyclohexenones
摘要:The Intramolecular [2 + 2] Photocycloaddition Mechanism Of Alkenes Tethered By A Three-Methylene Chain To Cyclohexenones Has Been Studied. It Was Found That The Reversion From A 1,4-Diradical Intermediate To Starting Material Is Slow Relative To The Rate Of Photoadduct Formation. Only ''Straight'' Closure Was Observed In The Systems Studied. For Compounds 1-3 And 5,The Assumption That The First Bond Is Formed Between The Beta-Carbon Of The Enone And C-4' Leading To A 1,4-Diradical Is Supported. For The Formation Of Compounds 6-11,Possible Mechanisms Are Discussed.
DOI:10.1021/jo00014A040