Catalytic Hydroformylation of Unsaturated Fatty Derivatives with Cobalt Carbonyl
نویسنده
چکیده
Two cobalt-carbonyl oxo processes were developed to prepare useful products in high yield from fatty derivatives. In one process, hydroformylation in the presence of MeOH at 120 C gives dimethyl acetal esters from either methyl oleate or oleic acid. In the other, a two-step process, hydroformylation (120 C) followed by hydrogenation (180 C) gives better yields of hydroxY methyl esters from both monoand polyunsaturated fatty substrates. Recycling the cobalt catalyst was demonstrated for the second process. The acetal and acetoxymethyl derivatives of the oxo products have utility as polyvinyl chloride plasti-
منابع مشابه
Hydroformylation of Unsaturated Fatty Acids
When hydroformylation of unsaturated fatty materials is done with rhodiu~-tripheny:lphosphine (or phosphite) catalysts, a number of advantages become apparent compared to cobalt carbonyl-catalyzed reactions. With rhodium, the reaction can be carried out (a) at pressures as low as 200 psi, (b) at each double bond location in a polyunsaturated fatty acid, and (c) in high yield and conversion. Sol...
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