Tungsten Hexachloride (WCl6) as an Efficient Catalyst for Chemoselective Dithioacetalization of Carbonyl Compounds and Transthioacetalization of Acetals

Abstract
A variety of aldehydes, ketones and O,O-acetals were efficiently converted to the corresponding 1,3-dithianes and 1,3-dithiolanes by using catalytic amounts of tungsten hexachloride (WCl6) in CH2Cl2 under mild conditions.

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