PRESSURE MANUPULATION METHOD FOR THE EFFECTIVE SELF-ALDOL CONDENSATION UNDER SUBCRITICAL AND SUPERCRITICAL CO_2

摘要

Under supercritical CO_2 conditions, simply the adjustment of pressure was found to successfully control the ratio of aldol product to enal one in the self-aldol condensation of aldehyde, in which the enal product was obtained in a maximum selectivity of 94% at the critical pressure of 12MPa, whereas 85% of selectivity to the aldol one was achieved at the subcritical region.