Abstract
Abstract In the presence of a catalytic amount of tetrakis(triphenylphosphine)platinum(0), allenes undergo carbonylative thiolation with carbon monoxide and thiols to provide the corresponding α,β- and β,γ-unsaturated thioesters in good yields. In contrast, the use of rhodium(I) catalysts such as RhH(CO)(PPh 3 ) 3 in place of Pt(PPh 3 ) 4 leads to copolymerization of allenes and carbon monoxide without incorporation of thio groups.
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