3-Diethylphosphonoacrolein diethylthioacetal anion (6*), a reagent for the conversion of aldehydes to α,β-unsaturated ketene dithioacetals and three-carbon homologated α,β-unsaturated aldehydes

Abstract
A short synthesis of the title compound is reported. It can be used to transform aldehydes to the corresponding α,β-unsaturated ketene dithioacetals, the sulfoxides of which can be converted to α,β-unsaturated aldehydes.

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