Direct amination of azoles via catalytic C-H, N-H coupling

Org Lett. 2009 Apr 2;11(7):1607-10. doi: 10.1021/ol900298e.

Abstract

C-H, N-H Coupling of azoles takes place with several amines in the presence of a copper catalyst to undergo amination at the 2-position. The reaction of benzothiazole with N-methylaniline in the presence of sodium acetate and 20 mol % Cu(OAc)(2) in xylene under an oxygen atmosphere afforded the aminated product in 81% yield.