Copper(II)-Catalyzed meta-Selective Direct Arylation of α-Aryl Carbonyl Compounds
作者:Hung A. Duong、Ruth E. Gilligan、Michael L. Cooke、Robert J. Phipps、Matthew J. Gaunt
DOI:10.1002/anie.201004704
日期:2011.1.10
Strong competition: A method for the meta‐selective arylation of the highly versatile α‐aryl carbonyl motif using diaryliodonium salts is described. In this CuII‐catalyzed process the remote carbonyl group is capable of overpowering even strongly para‐directing functionalities to form the elusive meta‐products (see scheme). Remarkably, the arylation process can also operate under metal‐free conditions
竞争激烈:描述了一种使用二芳基碘鎓盐对高度通用的α-芳基羰基进行亚选择性芳基化的方法。在这种Cu II催化的过程中,远程羰基基团甚至能够克服强对位官能团的功能,从而形成难以捉摸的元产物(请参见方案)。值得注意的是,芳基化过程也可以在无金属的条件下进行。