Phenoxypyridine derivatives
US4251662A · kind A · utility
20Cited by
0References
4Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 28, 1979 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Dec 28, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/89
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A phenoxypyridine derivative having the formula EQU (CH.sub.3 COO).sub.n CH.sub.3-n R (I) wherein R represents ##STR1## and n is 1 or 2 is produced by reacting a phenoxypyridine-N-oxide derivative having the formula EQU (CH.sub.3 COO).sub.n-1 CH.sub.4-n R' (III) wherein R' represents ##STR2## and n is 1 or 2 with acetic anhydride. The phenoxypyridine derivatives are especially suitable for producing synthetic pyrethroids having excellent insecticidal and acaricidal activity in high yield and an economical process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.