Process for preparing halogenated compounds

Details Process for preparing halogenated compounds Process for preparing halogenated compounds

1992-01-09

1993-11-02

Dees, Jose G.

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

Organic compounds

Carboxylic acid esters

560100, 560184, 560 8, 560227, 560229, 562490, 562586, 562602, 562605, 562840, 562849, 562856, 562864, 568303, 568323, 568348, 568364, 568365, C07C27300, C07C 6336, C07C 4900

Patent

active

052585476

ABSTRACT:
A process for preparing halogenated compounds of formula RCY(Z)CH.sub.2 CH(X)C(CH.sub.3)CH.sub.2 COR.sup.1 where X, Y and Z are halo, R is alkyl, halo, haloalkyl or aryl, and R.sup.1 is hydroxy, halo, alkoxy, alkyl or haloalkyl, or the residue of a pyrethroidal alcohol, in which a compound of formula CH.sub.2 =CHC(CH.sub.3).sub.2 COR.sup.1 is reacted with a sulphonyl halide of formula RCY(Z)SO.sub.2 X. The process avoids the use of volatile halocarbons in the production of valuable intermediates for insecticides.

REFERENCES:
patent: 4252820 (1981-02-01), Lantzch et al.

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