furnished the amidated products in excellent yields with high regioselectivity. The developed reaction conditions were also applied successfully for the secondary C(sp3)–H amidation of 8-ethylquinolines. Besides that, the reaction is also applicable for the gram-scale synthesis of the amidated product. In addition, the late-stage amidation of santonin oxime as well as carvone oxime and the diversification
Cp*Rh(III)-Catalyzed Mild Addition of C(sp<sup>3</sup>)–H Bonds to α,β-Unsaturated Aldehydes and Ketones
作者:Bingxian Liu、Panjie Hu、Xukai Zhou、Dachang Bai、Junbiao Chang、Xingwei Li
DOI:10.1021/acs.orglett.7b00690
日期:2017.4.21
A Rh(III)-catalyzed addition of benzylic C(sp3)–H bond to α,β-unsaturated ketones/aldehydes has been realized, leading to efficient synthesis of γ-aryl ketones/aldehydes. This atom-economic reaction proceeded under mild and redox-neutral conditions with a broad substrate scope. Besides benzylic C–H, allylic C–H bonds are also applicable when assisted by O-methyl ketoxime directing groups.