Commercially available anhydrous KF without activation or solid support promotes condensation between active methylene compounds, carbon disulfide and an alkylating agent in dry DMF to allow the preparation of a variety of ketene dithioacetals in fair to good yields under ambient conditions.
S. H. Mashraqui and H. Hariharasubrahmanian, J. Chem. Res. (S), 1999, 492 DOI: 10.1039/A901038F
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