Cobalt-Catalyzed Olefinic C–H Alkenylation/Alkylation Switched by Carbonyl Groups
作者:Tingyan Li、Cong Shen、Yaling Sun、Jian Zhang、Panjie Xiang、Xiunan Lu、Guofu Zhong
DOI:10.1021/acs.orglett.9b02717
日期:2019.10.4
The first cobalt-catalyzed cross-couplings between olefins has been demonstrated to provide C(alkenyl)-H alkenylation and alkylation products, using complex [Cp*Co(CO)I-2]. While coupling partner acrylates afforded conjugated dienoates, alpha,beta-unsaturated ketones led to gamma-alkenyl ketones completely, representing a switchable C-H functionalization controlled by different carbonyl groups.