Aminotrithiadiazepines

Abstract

Amino derivatives 3 of the trithiadiazepine ring are moderately stable crystalline solids, readily prepared from 6-bromotrithiadiazepine 1 and ammonia or amines under remarkably mild conditions; unusually for aromatic amines, the amino groups are tetrahedral and are not conjugated with, but are orthogonal to, the 10 π heteroaromatic rings, all of which form infinite overlapping stacks in the crystals.