Palladium-Catalyzed Oxidative sp2 CH Bond Acylation with Aldehydes
作者:Olivier Baslé、Johan Bidange、Qi Shuai、Chao-Jun Li
DOI:10.1002/adsc.200900874
日期:——
An efficient method was developed for the direct acylation of arene sp2 CH bonds with aldehydes using palladium acetate as catalyst and peroxide as oxidant. The solvent‐free oxidativeacylation reaction assisted by a pyridine directing group provides an easy access to aromatic, aliphatic, and optical active ketones.
Acylperoxycoumarins as<i>ortho</i>-CH Acylating Agent<i>via</i>a Palladium(II)-Catalyzed Redox-Neutral Process
作者:Prakash Ranjan Mohanta、Arghya Banerjee、Sourav Kumar Santra、Ahalya Behera、Bhisma K. Patel
DOI:10.1002/adsc.201600258
日期:2016.6.30
palladium(II)‐catalyzed biomimetic aliphatic acyl (‐COR) group transfer was observed from acyl‐α‐peroxycoumarins to the orthoCH sites of directingarenes. Here, the CH activation is associated with a concomitant acyl group transfer via a Pd(II)‐catalyzed, redox‐neutral process. While methods for ortho aroylation (‐COAr) are well documented ortho acylation (‐COR) processes are scarce, hence the present