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Synthesis of sulfur-containing heterocycles: spiropyrimidinetriones, thioxopyrimidinediones, pyrazolidinediones, and isoxazolidinediones—part ii

✍ Scribed by D. Bhaskar Reddy; N. Chandrasekhar Babu; V. Padmavathi

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
107 KB
Volume
12
Category
Article
ISSN
1042-7163

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✦ Synopsis

Abstract

1‐Aroyl‐2‐styrylsulfonylethene is the precursor for 4,4‐dimethoxycarbonyl‐2′,5‐diaryl‐3‐(1′,3′‐dioxolano)‐1‐thia‐1,1‐dioxide (4), which is the key intermediate for the synthesis of 7‐aroyl‐11‐aryl‐2,4‐diazaspiro[5,5]undecane‐1,3,5‐trione‐9‐thia‐9,9‐dioxide(10)/3‐thioxo‐1,5‐dione‐9‐thia‐9,9‐dioxide (11), 6‐aroyl‐10‐aryl‐2,3‐diazaspiro[4,5]decane‐1,4‐dione‐8‐thia‐8,8‐dioxide (12)/2‐oxo‐3‐azaspiro [4,5]decane‐1,4‐dione‐8‐thia‐8,8‐dioxide (13). The new compounds were characterized by IR and ^1^H NMR spectral data. © 2001 John Wiley & Sons, Inc. Heteroatom Chem 12:131–135, 2001

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