Selectivities in Nickel-Catalyzed Hydrocarboxylation of Enynes with Carbon Dioxide
作者:Tao Cao、Zheng Yang、Shengming Ma
DOI:10.1021/acscatal.7b00556
日期:2017.7.7
A three-component hydrocarboxylation of enynes with ZnEt2 and CO2 is realized. Highly selective cyclizative carboxylation of the C–C triple bond was observed. Preliminary mechanistic studies indicated both the concerted cyclometalation mechanism and the stepwise C═C bond-directed carboxylation were possible in this reaction.