Process for intermediates for insecticidal compounds
US4891450A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C43/225
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.