D. B. Reddy, V. Padmavathi, B. Seenaiah
Feb 1, 1993
Citations
0
Influential Citations
21
Citations
Journal
Heteroatom Chemistry
Abstract
Novel sulfur-containing spiro compounds such as 7,11-diaryl-9-thia-2,4-diazaspiro [5,5] undecane-1,3,5-trione 9,9-dioxides (2), 6,10-diaryl-8-thia-2,3-diazas-piro[4,5]decane-1,4-dione-8,8-dioxides (3) and 6,10-diaryl-2-oxo-8-thia-3-azaspiro [4,5] decane-1,4-dione-8,8-dioxides (5) have been prepared by the condensation of 4-dimethoxycarbonyl/diethoxycarbonyl-3,5-diaryl-1-thiane 1,1-dioxides (1) with urea, hydrazine hydrate, and hydroxylamine hydrochloride, respectively. The N-substituted derivatives (4 and 6) of 3 and 5 have also been prepared by acylation and nitrosation. The structures of 2, 3, and 5 were established by IR, 1H NMR, and 13C NMR spectral studies, respectively.