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Synthesis 1992; 1992(10): 965-968
DOI: 10.1055/s-1992-26280
DOI: 10.1055/s-1992-26280
paper
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Fluorinated Ketene Dithioacetals;1. Preparation and Application to the Synthesis of α-Trifluoromethylthiocarboxylic S-Esters and Aldehyde Derivatives
Further Information
Publication History
Publication Date:
17 September 2002 (online)
α-Trifluoromethylketene dithioacetals 3 were synthesized by Peterson reaction from trifluoromethyl ketones 1 and trimethylsilyl dithioacetals 2. Acid hydrolysis and reduction yielded α-trifluoromethylthiocarboxylic S-esters 4 and α-trifluoromethyl dithioacetals 5, respectively. Transacetalisation of the latter with ethanol gave the corresponding diethyl acetal. New procedures were developed to effect reduction and transacetalisation.