Process for preparation of substituted cyclopropane carboxylic a

Details Process for preparation of substituted cyclopropane carboxylic a Process for preparation of substituted cyclopropane carboxylic a

1975-09-26

1978-09-12

Thomas, Jr., James O.

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

Organic compounds

Carboxylic acid esters

260326A, 260326S, 260327TH, 2603322R, 2603474, 568843, 560104, 560128, 560226, 560228, 568845, 568849, 568812, 568821, 568826, 568828, 568838, 568839, C07C 6730

Patent

active

041139682

ABSTRACT:
When 1-halogeno-3-alkene-2-ol is reacted with an ortho-carboxylic ester and/or a ketene acetal, a .gamma.-halogeno-.delta.-unsaturated-carboxylic ester is obtained as a main reaction product. When this intermediate is treated with a basic substance, a substituted cyclopropane-carboxylic ester is formed. This ester can be used as an insecticide or an agricultural chemical as it is or after the alcohol residue of the ester has been converted to other alcohol residue.

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