Process for the preparation of alkyl-2-alkoxyimino-3-oxo-4-chlor

Details Process for the preparation of alkyl-2-alkoxyimino-3-oxo-4-chlor Process for the preparation of alkyl-2-alkoxyimino-3-oxo-4-chlor

1983-03-24

1984-10-30

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

560121, 560125, C07C13100, C07C13102

Patent

active

044801203

ABSTRACT:
Alkyl-2-alkoxyimino-3-oxo-4-chlorobutyrates are prepared in good yield by treating an alkyl-2-alkoxyimino-3-oxobutyrate with sulfuryl chloride in the presence of a catalytic amount of a N,N-dialkyl-substituted carboxamide wherein the mole ratio of sulfuryl chloride to oxobutyrate compound is at least about 1:1, the reaction being conducted in the presence of a chlorinated aliphatic or aromatic hydrocarbon solvent at a temperature of about 10.degree. to 50.degree. C.

REFERENCES:
patent: 4205180 (1980-05-01), Ochiai
patent: 4294960 (1981-10-01), Takaya

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