Reaction of enol trifluoromethanesulphonates with lithium cyanide in benzene (room temperature) in the presence of catalytic amounts of 12-crown-4 and tetrakis(triphenylphosphine)palladium(0) provides good to excellent yields of the corresponding α,β-unsaturated nitriles.
E. Piers and F. F. Fleming, J. Chem. Soc., Chem. Commun., 1989, 756 DOI: 10.1039/C39890000756
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