Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1989-09-25
1991-01-29
Gray, Bruce
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549434, 549362, 549350, 568661, 570129, C07D31744
Patent
active
049888269
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.
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Burton et al., The Journal of Organic Chemistry, vol. 35, No. 7, pp. 2125-2130 (Jul. 1970).
Carr Robin A. E.
Powell Lyn
Gray Bruce
Imperial Chemical Industries plc
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