Pd-Catalyzed Asymmetric Acyl-Carbamoylation of an Alkene to Construct an α-Quaternary Chiral Cycloketone
作者:Min Liu、Xing Wang、Ziqiong Guo、Hanyuan Li、Wei Huang、Hui Xu、Hui-Xiong Dai
DOI:10.1021/acs.orglett.1c02093
日期:2021.8.20
Herein, we report the palladium-catalyzed asymmetric acyl-carbamoylation of an alkene by employing thioesters as the acyl electrophiles and t-BuNC as the carbamoyl reagent, affording an α-quaternary chiral cycloketone in synthetically useful yields with excellent enantioselectivity. The reaction proceeded via asymmetric 1,2-migratory insertions of acyl-Pd into alkenes and subsequent migratory insertion
在此,我们报告了通过使用硫酯作为酰基亲电试剂和t- BuNC 作为氨基甲酰基试剂,钯催化的烯烃不对称酰基氨基甲酰化,以合成有用的产率提供具有优异对映选择性的 α-季铵手性环酮。该反应通过酰基-Pd 不对称 1,2-迁移插入烯烃和随后异氰化物迁移插入 C(sp 3 )-Pd II 进行。该产品可以多样化为一些有价值的骨架,保留对映纯度,证明了该协议的综合效用。