The reactions of some tetrahydro-β-carbolines, of hexahydroazepino[3,4-b]indoles, and of tetrahydrocarbazolones with arenesulphonyl azides

Abstract

2,9-Dimethyl-1,2,3,4-tetrahydro-1-oxo-β-carboline and 2,9-dimethyl-1,2,3,4-tetrahydro-β-carboline react with arenesulphonyl azides forming indoline-3-spiropyrrolidines; 2,10-dimethyl-3,4,5,10-tetrahydroazepino[3,4-b]indol-1 (2H)-one and 2,10-dimethyl-1,2,3,4,5,10-hexahydroazepino[3,4-b]indole react to form indoline-3-spiropiperidines. 9-Methyl-2-oxo-tetrahydrocarbazole reacts with p-chlorobenzenesulphonyl azide to form 1-methyl-2-p-chlorophenylsulphonylimino-3′-oxoindoline-3-spirocyclopentane.