Process for the preparation of pure alkyl alkylacetoacetates

Details Process for the preparation of pure alkyl alkylacetoacetates Process for the preparation of pure alkyl alkylacetoacetates

1997-02-25

1998-07-28

Geist, Gary

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

Organic compounds

Carboxylic acid esters

560174, C07C 6972, C07C 6966

Patent

active

057865019

ABSTRACT:
A process for the purification of alkyl alkylacetoacetates of the general formula: ##STR1## in which R.sup.1 is a C.sub.1 -C.sub.10 -alkyl group and R.sup.2 is a C.sub.1 -C.sub.4 -alkyl group. In the process, an alkyl alkylacetoacetate which contains an alkyl alkenylacetoacetate of the general formula: ##STR2## in which R.sup.1 and R.sup.2 have the above-stated meaning, and/or further by-products as an impurity, is converted with an ester of the general formula: ##STR3## in which R.sup.2 has the above-stated meaning, in the presence of a base, into an intermediate which is separated off.

REFERENCES:
patent: 2843623 (1958-07-01), Hansley et al.
patent: 2900311 (1959-08-01), Montagna et al.
patent: 3839418 (1974-10-01), Hinton et al.
patent: 4684743 (1987-08-01), Gramlich et al.
patent: 4806670 (1989-02-01), Gramlich et al.
Helv. Chim, Acta, vol. 70, (1987), 196-197.
Organikum, 15, (1976), pp. 571 and 632.
W. Hunter, "German Acetylene Chemical Industry Ethyl-Aceto-Acetate", pp. 1-26, Dec. 1946.

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