Bromine Radical-Mediated Sequential Radical Rearrangement and Addition Reaction of Alkylidenecyclopropanes
作者:Takashi Kippo、Kanako Hamaoka、Ilhyong Ryu
DOI:10.1021/ja311821h
日期:2013.1.16
Bromine radical-mediated cyclopropylcarbinyl-homoallyl rearrangement of alkylidenecyclopropanes was effectively accomplished by C-C bond formation with allylic bromides, which led to the syntheses of 2-bromo-1,6-dienes. A three-component coupling reaction comprising alkylidenecyclopropanes, allylic bromides, and carbon monoxide also proceeded well to give 2-bromo-1,7-dien-5-ones in good yield.
溴自由基介导的亚烷基环丙烷的环丙基羰基-高烯丙基重排通过与烯丙基溴形成 CC 键有效地完成,从而合成 2-溴-1,6-二烯。包括亚烷基环丙烷、烯丙基溴和一氧化碳的三组分偶联反应也进行得很好,以良好的收率得到2-溴-1,7-二烯-5-酮。