Phosphorus, Sulfur, and Silicon

The Synthesis of Some New Sulfur-Bearing Various Heterocyclic Systems Derived from Asymmetrical N, N′-Disubstituted Thiourea Derivatives

H Saad

Index: Saad, Hosam Phosphorus, Sulfur and Silicon and the Related Elements, 2006 , vol. 181, # 7 p. 1557 - 1567

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Citation Number: 2

Abstract

The heterocyclization of an asymmetrical N, N′-disubstituted thiourea (1a–d) in ring closure reactions with Br2/AcOH, ethyl chloroacetate, diethyl oxalate, diethyl malonate, and hydrazine hydrate led to the direct formation of sulfur-bearing various heterocyclic systems