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Aluminum hydrogen sulfate [Al(HSO4)3] as an efficient catalyst for the preparation of thioacetals


Aluminum hydrogen sulfate, as a heterogeneous solid acid catalyst, has been used for the mild conversion of carbonyl compounds to their thioacetals using 1,2- and 1,3-dithiol under ambient conditions with short reaction times in high to excellent yield in acetonitrile as solvent.

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Scheme 1
Scheme 2
Fig. 1


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The authors are indebted to the Islamic Azad University, Najafabad Branch for financial support of this research.

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Correspondence to Majid Ghashang.

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Ghashang, M. Aluminum hydrogen sulfate [Al(HSO4)3] as an efficient catalyst for the preparation of thioacetals. Res Chem Intermed 39, 2837–2842 (2013).

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  • Aluminum hydrogen sulfate [Al(HSO4)3]
  • Thioacetals
  • Thioacetalization
  • C–S bond formation
  • Carbonyl compounds