Fe2(CO)9-mediated [5+1] cycloaddition of vinylcyclopropanes and CO for the synthesis of α, β-cyclohexenones
作者:Cheng-Hang Liu、Zhe Zhuang、Sritama Bose、Zhi-Xiang Yu
DOI:10.1016/j.tet.2016.01.046
日期:2016.6
A Fe2(CO)9-mediated [5+1] cycloaddition of vinylcyclopropanes (VCPs) and CO to α, β-cyclohexenones has been developed. The reaction can tolerate aryl and aliphatic groups at the α-position of VCPs, while VCP substrates with vinyl or alkynyl substitutions are not suitable ones. In addition, this reaction can also be used to synthesize bicyclic rings if an aryl group is attached to the vinyl moiety of
已经开发出Fe 2(CO)9介导的乙烯基环丙烷(VCP)和CO与α,β-环己烯酮的[5 + 1]环加成反应。该反应可以耐受VCPsα位的芳基和脂族基团,而带有乙烯基或炔基取代基的VCP底物不是合适的。另外,如果芳基连接至底物的乙烯基部分,则该反应也可用于合成双环。与Fe(CO)5介导的[5 + 1]反应相比,便宜,安全的Fe 2(CO)9的使用和放弃光辐照条件是本方法的两个主要优点。