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Abstract
The reactivity of sulfurated substituted alkynes with dithiophosphoric acid has been investigated. Depending on the catalyst (Pd, Rh, Ni) and the solvent (benzene or THF) two types of alkenes can be isolated: Z—C(Me)==CH—R and/or Z—C(R)==CH—Me. The selectivity of this reaction was studied. 13C and 31P NMR of these new sulfurated alkenes were reported.