Syntheses and reactions of some novel quinoxalines, quinoxaline 1,4-dioxides, unprecedented derivatives of quinoxalinocinnoline, indoloquinoxaline, and various cycloalkane-based quinoxaline. A facile synthesis of the unknown 8H-indolo[3,2-a]phenazine and

Abstract

As a continuation of our interest in the chemistry of quinoxalines, the synthesis of some novel 2-amino-3-(2-nitrophenyl) quinoxaline derivatives (10-16) from benzofurazan oxide (BFO) (1a-g) and 2-nitrobenzylcyanide (5,6) is demonstrated below via the Bei