.alpha.-Halobenzyl esters

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters

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Details

260465D, 549447, 560 8, 560 9, 560 20, 560 81, 560101, 560105, C07C 69612, C07C12175, C07D31760

Patent

active

043606890

ABSTRACT:
New .alpha.-halobenzyl esters, intermediates for .alpha.-cyanobenzyl pyrethroid esters, are prepared by treating a benzaldehyde derivative with a pyrethroid acid halide. The resulting .alpha.-halobenzyl ester is treated with a water-soluble compound capable of generating cyanide ions (CN.sup.-) to give the corresponding .alpha.-cyanobenzyl esters.

REFERENCES:
patent: 4277617 (1981-07-01), Martel et al.
patent: 4315868 (1982-02-01), Martel et al.

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