A simple and efficient synthesis of N-sulfonyl ketimines through a Pd-catalyzedcross-coupling reaction between organoboronic acids and tosylbenzimidoyl chlorides under mild conditions has been developed.
A SIMPLE METHOD FOR THE PREPARATION OF N-SULFONYLIMINES BY DIRECT CONDENSATION OF<i>p</i>-TOLUENESULFONAMIDE WITH DIARYL KETONES
作者:Ram N. Ram、Arif Ali Khan
DOI:10.1081/scc-100103318
日期:2001.1
Diaryl ketones condense with p-toluenesulfonamide in refluxing 1,2-dichloroethane in the presence of TiCl4/Ti(O-iPr)4 or TiCl4/Et3N to give N-sulfonylimines in generally good yields.