Chemical Communications 2006-01-14

A novel heterocyclic atom exchange reaction with Lawesson's reagent: a one-pot synthesis of dithiomaltol.

Daniel Brayton, Faith E Jacobsen, Seth M Cohen, Patrick J Farmer

文献索引：Chem. Commun. (Camb.) (2) , 206-8, (2006)

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摘要

A one-pot reaction of maltol with Lawesson's reagent generates dithiomaltol, a thiopyran-4-thione, via an unusual heterocyclic atom exchange (HCAE) reaction; only pyrones with proton or aliphatic substituents undergo the HCAE substitution.