Azabenzocycloheptenones. Part VII. The chemistry of some bromobenz[b]azepines and the syntheis of an azatropone dimer

Abstract

Transformations, particularly debromination and hydrolysis of 4,4,7,9-tetrabromo-2,3,4,5-tetrahydrobenz[b]-azepin-5-one are described. While various new compounds are reported, attempts at dehydrogenation have been generally unsuccessful except that 2,3-dihydro-1-N-toluene-p-sulphonylbenz[b]azepin-3-one gave an azatropone dimer on treatment with sodium hydride in tetrahydrofuran.