process for hydroformylation of olefins in a biphasic medium

摘要

PCT No. PCT/FR96/00069 Sec. 371 Date Jul. 17, 1997 Sec. 102(e) Date Jul. 17, 1997 PCT Filed Jan. 16, 1996 PCT Pub. No. WO96/22267 PCT Pub. Date Jul. 25, 1996The invention relates to a process for the hydroformylation of an olefin chosen from the alkenes represented by the formula CnH2n in which n is an integer less than or equal to 30, or chosen from functionalized olefins, by a CO/H2 gas mixture in a two-phase medium, this process consisting in placing in contact, on the one hand, an aqueous solution containing a catalytic system consisting of a water-soluble transition metal complex and a water-soluble phosphine, and, on the other hand, an olefin, in heating the reaction mixture obtained with stirring, after it has been placed under a pressure of the CO/H2 gas mixture, in which process a modified cyclodextrin is introduced into the aqueous solution containing the catalytic system.