| 摘要 |
63293-2694 PROCESS FOR THE PREPARATION OF UNSATURATED KETONES Process for the preparation of compounds of the general formula: R-C?C-C(O)-C(R)?CH2 (I) R representing an H atom or an optionally substituted hydrocarbyl group, by reacting a compound R-C=CH with CO in the presence of a Pd(II) compound, an organic phosphine and a protonic acid having a PKa below 3.0. Compounds of formula I in which R represents an optionally substituted hydrocarbyl group are novel. Acetylenically and ethylenically unsaturated ketones may be used as starting materials for the preparation of jasmone-type compounds and of polymers. |
