2,4,4,6-Tetrabromo-2,5-cyclohexadienone (TABCO), N-Bromosuccinimide (NBS) and Bromine as Efficient Catalysts for Dithioacetalization and Oxathioacetalization of Carbonyl Compounds and Transdithioacetalization Reactions |
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| Authors: | Nasser Iranpoor Habib Firouzabadi Hamid Reza Shaterian M. A. Zolfigol |
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| Affiliation: | Department of Chemistry , Shiraz University , Shiraz , Iran |
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| 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 presence of thiols. |
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| Keywords: | 1,3-Oxathiolane 2,4,4,6-tetrabromo-2,5-cyclohexadienone (TABCO) Bromine Carbonyl Compound Dithioacetalization N-bromosuccinimide (NBS) Thiol Transdithioacetalization |
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