New ring systems from 1,2-benzisothiazole-1,1-dioxides and related compounds

Article abstract of DOI:10.1016/0040-4020(95)01115-3

Ring-expansions and ring-annulations based on 3-substituted 1,2-benzisothiazole-1,1-dioxides have lead to a variety of novel heterocyclic systems. The reaction of 3-substituted (1H)-1-isoindoles with 1-diethylamino-1-propyne has also resulted in new, ring-expanded molecules in good to modest yields.