Benzylidenetriphenylphosphorane (4) reacts with carbon disulphide to give 2,4-dibenzylidene-1,3-dithietan (10), 2-phenyl-2-triphenylphosphoniodithioacetate (5), 2-benzylidene-4-phenyl-1,3-dithiole (11), and 2-phenyl-1-(phenyldithioacetyl)-2-triphenylphosphonioethenethiolate (16). The isolation and yield of each compound depend strictly on the experimental conditions and, in particular, on the work-up procedure.
G. Purrello and P. Fiandaca, J. Chem. Soc., Perkin Trans. 1, 1976, 692 DOI: 10.1039/P19760000692
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