Abstract

A bis(η 2-cyclooctadienyl)ruthenium/PCy 3/maleic anhydride system catalyzes the addition reaction of acetic acid to propargyl alcohol derivatives at 80°C to give 2-acetoxyallyl derivatives with high selectivity in high yields. The 2-acetoxyallyl carbonates prepared react with carbonucleophiles in the presence of a catalytic amount of Pd(PPh 3) 4 to give a series of novel polyfunctional enol esters in good to excellent yields.

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