| 摘要 |
A process for preparing esters of alpha-ethylenically unsaturated alcohols and alpha-ethylenically unsaturated carboxylic acids by reacting an acetylenically unsaturated compound with CO and a ketone containing a group HC-C(=O), using a Pd(II) catalyst, a triphenylphosphine in which the phenyl groups carry an electron-withdrawing substituent and a non-carboxylic protonic acid having a pKa not greater than 1.5.
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