Method of preparing a 3-alkoxy-2-alkyl-propionic acid ester deri

Details Method of preparing a 3-alkoxy-2-alkyl-propionic acid ester deri Method of preparing a 3-alkoxy-2-alkyl-propionic acid ester deri

1978-09-14

1981-07-14

Trousof, Natalie

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

Organic compounds

Carboxylic acid esters

560184, 560186, C07C 69734, C07C 6963, C07C 6967

Patent

active

042788080

ABSTRACT:
3-Alkoxy-2-alkyl-propionic acid derivatives are prepared by catalytic hydrogenation of the acrylic acid analogs. The latter are obtained by CO treatment of lower alkyl esters of alkanoic acids having 3-6 carbon atoms in the presence of alkali metal methylate and condensation of the resulting 2-formylalkanoic acids or their alkali metal enolates with compounds of the formula X--(CH.sub.2).sub.m --Z wherein X is Cl, Br, or OH, and Z is Cl, Br, I, alkyl- or arylsulfonyl, or OH.

REFERENCES:
patent: 2535010 (1950-12-01), Croxall et al.
patent: 4115105 (1978-09-01), Scannell et al.
Litvin, E. F. et al., "Stage mechanism of the hydrogenation of linoleates." Izv. Akad. Nauk. SSSR, Ser. Khim. (1971) 1464-1468. (See Chemical Abstracts 75 (1971) #97,941s).
Mikhant'eva, O. N. et al., "Synthesis of ethylene glycol vinyl heptyl and allyl heptyl ethere." Tr. Voronezh. Gos. Univ. (1969) 73(2)19-20. (See Chemical Abstracts 75 (1971) #152,115e).
Kirk-Othmer Ency. of Chemical Technology, 2nd Ed., vol. 8, pp. 474-475, (1966).
Ibid, 1st Ed., vol. 3, p. 183, (1949).
Sokol'skii, D. V. et al., "Relation between structure and reactivity during the hydrogenation of unsaturated aliphatic nitriles and acids with conjugated bonds. (See Chemical Abstracts 70 (1969), #28,142s.
Houben-Weyl, "Methoden der organischen Chemie", George Thieme, Verlag Band VII, Teil 1, at p. 436.

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