Isomer enrichment process for cyclopropanecarboxylates

Details Isomer enrichment process for cyclopropanecarboxylates Isomer enrichment process for cyclopropanecarboxylates

Category

C - Chemistry, Metallurgy

Subcategory

07

Subsubcategory

C

CPC

260/518, 260/479

IPC codes

C07C 61/16 (2006.01) C07C 51/487 (2006.01) C07C 69/743 (2006.01)

Type

Patent

Patent number

CA 1192218

Description

ABSTRACT A method of partially resolving the cis and trans isomers of a cyclopropane carboxylate by a controlled partial hydrolysis. The cis/trans distribution in the hydrolyzed product differs from that in the starting material. The cyclopropane carboxylates are known intermediates for the natural and synthethic pyrethroids, some of which exhibit a difference in pesticidal activity depending on whether the cis or trans isomers are applied.

Application Number

410426

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