Synthesis ofN-Aryl-2-allylpyrrolidinesvia Palladium-Catalyzed Carboamination Reactions of γ-(N-Arylamino)alkenes with Vinyl Bromides
作者:Joshua E. Ney、Michael B. Hay、Qifei Yang、John P. Wolfe
DOI:10.1002/adsc.200505172
日期:2005.10
A palladium-catalyzed carboamination reaction of gamma-N-arylamino alkenes with vinyl bromides that affords N-aryl-2-allyl pyrrolidines is described. These reactions proceed with high diastereoselectivity for the formation of trans-2,3- and cis-2,5-disubstituted pyrrolidines. Conditions for a tandem N-arylation/carboamination sequence that leads to the formation of an N-aryl-2-allyl pyrrolidine or
描述了γ-N-芳基氨基烯烃与乙烯基溴的钯催化的碳氨化反应,得到N-芳基-2-烯丙基吡咯烷。这些反应以高非对映选择性进行,以形成反式2,3-和顺式2,5-二取代的吡咯烷。还报道了通过伯γ-氨基烯烃,芳基溴化物和乙烯基溴化物的偶联导致N-芳基-2-烯丙基吡咯烷或二氢吲哚形成串联N-芳基化/碳氨化序列的条件。讨论了碳氨化反应的机理以及由乙烯基溴的重排形式衍生的意想不到的产物的来源。