Synthesis of biaryl ketones by arylation of Weinreb amides with functionalized Grignard reagents under thermodynamic control <i>vs.</i> kinetic control of <i>N</i>,<i>N</i>-Boc<sub>2</sub>-amides
作者:Guangchen Li、Michal Szostak
DOI:10.1039/d0ob00813c
日期:——
A highlyefficient method for chemoselective synthesis of biaryl ketones by arylation of Weinreb amides (N-methoxy-N-methylamides) with functionalized Grignard reagents is reported. This protocol offers rapid entry to functionalized biaryl ketones after Mg/halide exchange with i-PrMgCl·LiCl under operationally-simple and practical reaction conditions. The scope of the method is highlighted in >40 examples