Oxidative dearomatization and unusual intramolecular Diels–Alder reaction of cyclohexa-2,4-dienone: synthesis and photoreaction of oxa-tricyclo[5.2.2.01,5]undec-10-ene-8-ones
作者:Vishwakarma Singh、Beauty Das
DOI:10.1016/j.tetlet.2015.02.113
日期:2015.4
An efficient synthesis of annulated bicyclo[2.2.2]octane having β,γ-enone chromophoric system and triplet sensitized 1,2-acyl shift rearrangement leading to the formation of angular oxa-triquinane is described. Oxidative dearomatization, intramolecular Diels–Alder reaction of 6,6-spiroepoxycyclohexa-2,4-dienone and oxa-di-π-methane reaction are the key features of our approach.
描述了一种具有β,γ-烯酮发色体系的环状双环[2.2.2]辛烷的高效合成方法,该方法合成了三重态敏化的1,2-酰基移位重排,导致形成角氧杂-三喹烷。氧化脱芳香化作用,6,6-螺氧基环氧环己2,4-二烯酮的分子内Diels-Alder反应和oxa-di-π-甲烷反应是我们方法的关键特征。