Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1990-01-04
1991-02-05
Garner, Vivian
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
556 18, C07C 6736, C07C 6914
Patent
active
049906542
ABSTRACT:
A process for the production of acetate esters by the catalytic reaction of an alcohol of the formula ROH and carbon monoxide in contact with a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo (.dbd.O) oxygen atom attached to a phosphorus atom or a carbon atom to form a Z group and the ##STR1## group is located at least one carbon atom removed and preferably from 2-4 carbon atoms removed from the phosphorus atom of the molecules represented by the formulas ##STR2## and a halogen promoter, under mild reaction conditions, wherein R' is H, aryl, alkaryl, aralkyl or alkyl, and wherein 1 or more of said R' groups can be substituted with a Z group but not more than 3 of said R' groups in the molecule are so substituted; a is an integer from 0-4; b is an integer from 0-3; and Z is P(O)R'R'; --C(O)OR" or C(O)R", wherein R" is R'; and wherein ROH is methanol or a mixture of methanol and at least one higher alcohol.
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Chemical Abstracts, vol. 98, No. 11, 14th Mar. 1983, p. 679, Abstract No. 100166a, Columbus, Ohio, U.S.; R. Uson et al.: "Bidentate Amine N-Oxides and Phosphine Oxides as Ligands in Rhodium(I) Chemistry", & J Organomet, Chem. 1982, 240(4), 429-39.
Finnegan Reynold J.
Garner Vivian
Union Carbide Chemicals and Plastics Company Inc.
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