Polystyrene-supported Pd(II) complex-catalysed carboacylation of 2-arylpyridines with alcohols via C─H bond activation under solvent-free conditions
作者:Pullaiah C. Perumgani、Sai Prathima Parvathaneni、Srinivas Keesara、Mohan Rao Mandapati
DOI:10.1002/aoc.3581
日期:2017.3
was used as an efficientcatalyst for the synthesis of aromatic ketones via ortho‐acylation of sp2 C─H bonds of 2‐arylpyridines with alcohols as effective coupling partners. The alcohols were oxidized with tert‐butyl hydroperoxide to their corresponding aldehydes in situ and efficiently coupled with 2‐arylpyridines to form aryl ketones undersolvent‐free conditions. Furthermore, catalyst C could be easily
A palladium-catalyzeddirect access to ketones from aldehydes via C−H cleavage of arenes is described. The procedure utilizes air as a clean and free terminal oxidant.