Pd-Catalyzed <i>Ortho</i>-C−H Acylation/Cross Coupling of Aryl Ketone <i>O</i>-Methyl Oximes with Aldehydes Using <i>tert</i>-Butyl Hydroperoxide as Oxidant
作者:Chun-Wo Chan、Zhongyuan Zhou、Albert S. C. Chan、Wing-Yiu Yu
DOI:10.1021/ol101618u
日期:2010.9.3
Pd-catalyzed protocol for direct C−H bond acylation by cross coupling of aryl ketone oximes and aldehydes using tert-butyl hydroperoxide (TBHP) as oxidant was developed. With oximes as a directing group for the C−H activation, the coupling with aldehydes was achieved with remarkable regioselectivity. The acylationreactions exhibit excellent functional group tolerance, and both aliphatic and heteroaromatic