Preparation of organic acids and/or esters

Details Preparation of organic acids and/or esters Preparation of organic acids and/or esters

1979-01-26

1981-02-03

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560 19, 560 64, 560 67, 560103, 560126, 560128, 560179, 560183, 560187, 560208, 560225, 560265, 562400, 562408, 562433, 562473, 562475, 562508, 562510, 562523, 562579, 562588, 562598, 562493, 562512, 548367, C07C 6739, C07C 6974, C07C 6976

Patent

active

042490154

ABSTRACT:
Carboxylic acids and/or esters are prepared by converting the ##STR1## moiety in a 1-substituted 2,2-trihaloethanol, or derivative wherein X represents halogen and R is hydrogen or an acyl group to an organic acid and/or ester grouping of the formula ##STR2## wherein R' is hydrogen or alkyl of 1 to 6 carbon atoms, in the process which comprises reacting the 1-substituted 2,2,2-trihaloethanol or acylated derivative with molecular oxygen in the presence of a catalyst comprising a complex of a transition metal having an atomic number from 21-30, 39-48 or 57-80 and at least one molecule of a ligand containing trivalent nitrogen, phosphorus, arsenic or antimony. This reaction is carried out in a reaction medium comprising an alcohol or aqueous alcohol having 1 to 6 carbon atoms optionally containing an alkali metal, said alcoholic solvent also serving as a reactant source when carboxylic acid esters are formed.

REFERENCES:
patent: 2828337 (1958-03-01), Whitaker
patent: 3639449 (1972-02-01), Kunugi et al.
Yamane, Yasuhiro et al., "Decarboxylation Reaction of Oxalacetic Acid by Metal Chelates." Chem. Pharm. Bull. 19 (11), 2343-2348, (1971).
Luknitski, F. I., Chemical Reviews (Jun. 1975), 75(3), pp. 259-289.
Bauer, Kurt et al., Ger. Offen., 2,115,551, (See Chemical Abstracts 78 (1973), #3,958q.
Yamane, Yasuhiro et al., Chemical Abstracts 76 (1972), #33,529b.
Mizuguchi, Jun et al., Chemical Abstracts 69 (1968), #102,373r.

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