Back to results
US 4,251,662 AGranted
Phenoxypyridine derivatives
AssigneeNissan Chemical Industries, Ltd.
InventorsKiyomi Ozawa, Shigeru Ishii, Masataka Hatanaka
Life of this patent
Estimating the term…
Abstract
A phenoxypyridine derivative having the formula (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 (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.
Claims4
Phenoxypyridine derivatives having the formula
- (CH.sub.3 COO).sub.n CH.sub.3-n R (I)
- wherein R represents ##STR21## and n is 1 or 2.
Dependencies are inferred from the claim text.