Process for the production of 4-chloro-3-alkoxy-but-2E-enoic aci

Details Process for the production of 4-chloro-3-alkoxy-but-2E-enoic aci Process for the production of 4-chloro-3-alkoxy-but-2E-enoic aci

1989-06-08

1990-10-30

Gray, Bruce

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

Organic compounds

Carboxylic acid esters

560184, C07C 6973

Patent

active

049669893

ABSTRACT:
A process for the production of 4-chloro-3-alkoxy-but-2E-enoic acid alkyl esters starting from 4-chloroacetoacetic acid chloride by reaction with a dialkyl sulfite. The produced intermediate products are used as structural elements for, i.a., pharmaceutical agents.

REFERENCES:
patent: 2571212 (1951-10-01), Croxall et al.
patent: 2864852 (1958-12-01), Jones
patent: 4812593 (1989-03-01), Hoelderich et al.

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