2, 4, 4, 6-Tetrabromo-2, 5-cyclohexadienone (TABCO), N-bromosuccinimide (NBS) and bromine as efficient catalysts for dithioacetalization and oxathioacetalization of …

N Iranpoor, H Firouzabadi, HR Shaterian…

Index: Iranpoor, Nasser; Firouzabadi, Habib; Shaterian, Hamid Reza; Zolfigol Phosphorus, Sulfur and Silicon and Related Elements, 2002 , vol. 177, # 5 p. 1047 - 1071

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Citation Number: 6

Abstract

The use of 2, 4, 4, 6-tetrabromo-2, 5-cyclohexadienone (TABCO), N-bromosuccinimide (NBS), and bromine as efficient catalysts for conversion of carbonyl compounds to their cyclic and acyclic dithioacetals and 1, 3-oxathiolanes under mild reaction conditions are described. These catalysts are also used for efficient transdithioacetalization of acetals, diacetals, ketals, acylals, enamines, hydrazones, and oximes with high yields in the ...