Palladium-Catalyzed Conjugate Allylation Reactions of α,β-Unsaturated <i>N</i>-Acylpyrroles
作者:Michael B. Shaghafi、Benjamin L. Kohn、Elizabeth R. Jarvo
DOI:10.1021/ol801830h
日期:2008.11.6
Conjugate allylation reactions of alpha,beta-unsaturated N-acylpyrroles using allylboronic ester are catalyzed by a palladium complex that is ligated by a bidentate N-heterocyclic carbene. A variety of functional groups are tolerated, and substrates functionalized with electron-withdrawing groups react to afford the highest yields of products. Regioselectivity for 1,4-allylation over 1,2-allylation