Process for intermediates for insecticidal compounds

Details Process for intermediates for insecticidal compounds Process for intermediates for insecticidal compounds

1988-01-25

1990-01-02

Moyer, Donald B.

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

Organic compounds

Oxygen containing

568655, 568656, 570128, C07C 43225

Patent

active

048914509

ABSTRACT:
The invention provides novel arylalkene compounds of formula I, a process for their preparation and their use as intermediates for insecticidal compounds, comprising, ##STR1## wherein W represents 1 to 4 substituents selected from halo, alkyl, alkoxy, haloalkyl, haloalkoxy and alkoxyalkyl, or W represents a bidentate alkylene or alkylenedioxy group linking adjacent carbon atoms, X represents fluoroalkyl, and Y is selected from chlorine, bromine and alkoxy; and a process for preparing said ethers. The compounds of formula I are prepared by reacting a ketone of formula: ##STR2## with a phosphonium salt of formula Hal.sup.- (Q).sub.3 P.sup.+ -CH.sub.2 -Y, where Hal.sup.- represents a halide ion and Q represents alkyl or aryl.

REFERENCES:
patent: 2475423 (1949-07-01), Dickey et al.
patent: 4678811 (1987-07-01), Franke et al.
Burton et al., The Journal of Organic Chemistry, vol. 35, No. 7, pp. 2125-2130 (Jul. 1970).

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