Neighboring effect of pyrazole rings: regio- and stereoselective Wagner–Meerwein rearrangement in electrophilic addition reactions of norbornadiene-fused pyrazoles
作者:Tomoshige Kobayashi、Yosuke Uchiyama
DOI:10.1039/b002454f
日期:——
The electrophilic addition reactions of norbornadiene-fused pyrazoles with bromine or p-nitrobenzenesulfenyl chloride provided the skeletally rearranged adducts regio- and stereoselectively probably via the neighboring group participation of a pyrazole ring accompanied by the formation of a bridged pyrazolium ion.
降冰片二烯稠合的亲电加成反应 吡唑类 与溴或 对硝基苯磺酰氯通过吡唑环的邻近基团的参与伴随骨架桥式重氮离子的形成,提供了骨架和立体选择性的骨架重排加合物。