Insecticidal esters
US4220591A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1976 |
| Grant date | Sep 2, 1980 |
| Priority date | — |
| Expiry date | Nov 17, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D317/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The (+), (-) and (.+-.) forms of the compounds of formula I ##STR1## wherein R.sup.1 is hydrogen or a methoxy, ethoxy, propoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, nitro or amino group, and PA0 R.sup.2 is a hydrogen or methyl group or R.sup.1 and R.sup.2 together form a methylenedioxy group; PA0 R.sup.3 is hydrogen, or a lower alkyl group, or one of the following groups (a) to (d): PA1 (a) m-phenoxybenzyl PA1 (b) 2-benzyl-4-furylmethyl PA1 (c) .alpha.-cyano-m-phenoxybenzyl PA1 (d) 3,4-methylenedioxy-benzyl, and PA0 R.sup.4 and R.sup.5 are the same or different groups and each is a fluoro, bromo, chloro or methyl group. The compounds of formula I in which R.sup.3 is one of group (a) to (d) are extremely active as insecticides (except when R.sup.1 is an amino group). The compounds also possess the property of contact repellency to insects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.