Alkynyl cyclic carbonates react with terminal alkynes and prop-2-ynylic alcohols in the presence of catalytic amounts of Pd(PPh3)4 and CuI to selectively afford functional conjugatged alkynyl α-allenols in good yields.
C. Darcel, C. Bruneau and P. H. Dixneuf, J. Chem. Soc., Chem. Commun., 1994, 1845 DOI: 10.1039/C39940001845
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