Heterocyclic Photochemistry in Contrast with Carbon Behavior. Regioselective Photochemical Rearrangement of an Azacyclohexadienone: Mechanistic and Exploratory Organic Photochemistry
作者:Howard E. Zimmerman、Sergey Shorunov
DOI:10.1021/jo900901g
日期:2009.8.7
The Type-A photochemistry of cyclohexadienones is well-studied and follows a well-established mechanistic pathway. One early example is the rearrangement of santonin to lumisantonin. Another example is the rearrangement of 4,4-diphenylcyclohexa-1,5-dienone. Remarkably, replacement of one carbon by nitrogen alters the reaction course to give a regioselective phenyl migration.
研究了环己二酮的A型光化学,并遵循了完善的机理途径。早期的一个例子是将桑托宁重新排列为发光蛋白。另一个例子是4,4-二苯基环己-1,5-二烯酮的重排。显着地,用氮取代一个碳改变了反应过程,从而产生了区域选择性的苯基迁移。