Transforming Benzylic Amines into Diarylmethanes: Cross-Couplings of Benzylic Pyridinium Salts via C–N Bond Activation
作者:Jennie Liao、Weiye Guan、Brian P. Boscoe、Joseph W. Tucker、John W. Tomlin、Michelle R. Garnsey、Mary P. Watson
DOI:10.1021/acs.orglett.8b01062
日期:2018.5.18
nickel-catalyzed cross-coupling of benzylic pyridinium salts with arylboronic acids was developed. Coupled with chemoselective pyridinium formation, this method allows benzyl primary amines to be efficiently converted to di(hetero)arylmethanes. Excellent heteroaryl and functional group tolerance is observed, and a one-pot procedure enables benzylic amines to be converted to diarylmethanes directly.
开发了镍催化的苄基吡啶鎓盐与芳基硼酸的交叉偶联。结合化学选择性吡啶鎓的形成,该方法可使苄基伯胺有效地转化为二(杂)芳基甲烷。观察到优异的杂芳基和官能团耐受性,一锅法可使苄基胺直接转化为二芳基甲烷。