Rearrangement studies on 3,3-bis(methylthio)-1-(arylcyclopropyl) -2-propen-1-ols: Synthesis of functionalized cyclopentenes and polyene esters
作者:Balaram Patro、Bishwajit Deb、Hiriyakkanavar Ila、Hiriyakkanavar Junjappa
DOI:10.1016/s0040-4020(01)80748-1
日期:1994.4
The cyclopropyl carbinols 8 and 9 obtained by either borohydride reduction (or Grignard addition) of the cyclopropyl ketones 1 are shown to undergo acid induced ring opening and intramolecular cyclization (5-exo or 6-endo) or deprotonation to afford either cyclopentene, biphenyl or conjugated polyene derivatives depending on the nature of Lewis acid, reaction conditions and the structuralfeatures present
通过环丙基酮1的硼氢化物还原(或格氏加成反应)获得的环丙基甲醇8和9被显示为发生酸诱导的开环和分子内环化(5-外部或6-内基)或去质子化,从而提供环戊烯,联苯或共轭多烯衍生物,取决于路易斯酸的性质,反应条件和环丙基甲醇中存在的结构特征。已经提出了形成各种产物的可能机理。