Method of manufacturing chlorine-free cyclopropanecarboxylic aci

Details Method of manufacturing chlorine-free cyclopropanecarboxylic aci Method of manufacturing chlorine-free cyclopropanecarboxylic aci

1993-05-11

1994-12-06

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

568700, C07C 6974

Patent

active

053712706

ABSTRACT:
A method of manufacturing chlorine-free cyclopropanecarboxylic acid methyl ester is described wherein a first portion of alkali methoxide is added to a high-boiling solvent, followed by a second portion of methoxide with an equimolar portion of 4-chlorobutyric acid. The ester product can be readily hydrogenated catalytically to the corresponding carbinol.

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patent: 4520209 (1985-05-01), Schwarze
patent: 4590292 (1986-05-01), Blackwell
patent: 4778920 (1988-10-01), Kaufhold

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