Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1987-01-08
1989-03-14
Gray, Bruce D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
560122, 560123, 560124, 560126, C07C 6966
Patent
active
048125920
ABSTRACT:
The invention concerns a process for the preparation of the esters of an alkyltartronic acid by direct oxidation, with O.sub.2 or the like, at 30.degree.-200.degree. C., of the corresponding alkyl-malonic esters, in the presence of a catalytic system, comprising a salt of a transition metal, selected from Mn, Fe, Co and Cu, and an alkali-metal salt of an aliphatic carboxylic acid, optionally in the presence of a polar solvent.
REFERENCES:
patent: 3997593 (1976-12-01), Stadler et al.
patent: 4342773 (1982-08-01), Di Toro et al.
Eskola et al., Chemical Abstracts, vol. 42, No. 122h, 1948.
White et al., J. Am. Chem. Soc., vol. 106, pp. 3701-3703 (1984).
Cometti Giuseppe
Pagani Anselmo
Santi Roberto
Consiglio Nazionale Delle Ricerche
Gray Bruce D.
Istituto Guido Donegani S.p.A.
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