Jh. Chen et H. Alper, A NOVEL WATER-SOLUBLE RHODIUM-POLY(ENOLATE-CO-VINYL ALCOHOL-CO-VINYL ACETATE) CATALYST FOR THE HYDROFORMYLATION OF OLEFINS, Journal of the American Chemical Society, 119(5), 1997, pp. 893-895
The water-soluble polymer, poly(enolate-co-vinyl alcohol-co-vinyl acet
ate) (PEW), prepared by controlled oxidation of poly(vinyl alcohol-co-
vinyl acetate), is a valuable ligand for the rhodium biphasic catalyti
c hydroformylation of olefins. The average turnover frequency for the
catalytic hydroformylation of 1-octene was 5.46 x 10(-5) kmol (kg(Rh)s
)(-1) at 90 degrees C, and that of 1-dodecene was 2.36 x 10(-4) kmol (
kg(Rh)s)(-1) at 60 degrees C. Selective hydroformylation of styrene an
d its derivatives gave up to 97% of branched-chain aldehyde using Rh-P
VV under biphasic reaction conditions but at low conversions.