Azabenzocycloheptenones. Part 19. Formation of some heterocyclic annelated compounds from 1,2,3,4-tetrahydro-1-benzazepine derivatives

Abstract

Some 4-ethoxycarbonyl- and 4-formyl-1,2,3,4-tetrahydro-1-benzazepines have been converted into pyrimido[5,4-d][1]benzazepine, pyrazolo[4,3-d][1]benzazepine, and isoxazolo[4,5-d][1]benzazepine derivatives. Also made were isolated examples of thiadiazolo[5,4-d][1]benzazepine, quino[3,2-d][1]benzazepine, indolo[3,2-c][1]benzazepine, and isoxazolo[4,3-d][1]benzazepine derivatives.