Branching out: A simple and inexpensive cobalt/triarylphosphine catalyst promotes aldimine‐directed hydroarylation of styrene with high branched regioselectivity to afford 1,1‐diarylethane derivatives in good yields under mild reaction conditions. The ortho‐formyl group in the hydroarylation products is amenable to dehydrative cyclization, to give fused polycyclic aromatic hydrocarbons, as well as
分支:简单且廉价的
钴/三芳基膦催化剂可在高支化区域选择性的情况下,以高支化区域选择性促进
苯乙烯的醛
亚胺定向加氢芳基化,从而以高收率提供1,1-二芳基
乙烷衍
生物。加氢芳基化产物中的邻甲酰基适合于脱
水环化作用,以生成稠合的多环
芳烃以及脱羰基。