Reactions of α-Hydroxyketene Dithioacetals with Lawesson’s Reagent: An Efficient Method for the Synthesis of α,β-Unsaturated Dithioesters

Satheesh K. Nair; Ann Maria Jose; C. V. Asokan

doi:10.1055/s-2005-865301

PAPER

Reactions of α-Hydroxyketene Dithioacetals with Lawesson’s Reagent: An Efficient Method for the Synthesis of α,β-Unsaturated Dithioesters

Satheesh K. Nair, Ann Maria Jose, C. V. Asokan*
School of Chemical Sciences, Mahatma Gandhi University, Priyadarshini Hills P. O., Kottayam, 686 560, India
e-Mail: asokancv@yahoo.com;

Abstract

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Abstract

The α-hydroxyketene dithioacetals 2 and 5, obtained from α-oxoketene dithioacetals by the 1,2-reduction or the 1,2-addition of carbon nucleophiles, on treatment with Lawesson’s reagent afforded α,β-unsaturated dithioesters 3 and 6 in good yields.

Key words

ketene dithioacetals - dithiocarboxylates - Lawesson’s reagent - thionation - heterodienes

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References

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