The Ullmann reaction. Part I. The reaction of 2,3-di-iodonitrobenzene with copper bronze
Abstract
The reaction of 2,3-di-iodonitrobenzene with copper bronze in dimethylformamide gives 1,5-dinitrobiphenylene, 2,2′-di-iodo-6,6′-dinitrobiphenyl, and 4,5,12,13-tetranitrotetraphenylene. A reaction mechanism is suggested.