Herbicidal 3-(trifluro-methyl-halophenoxy)-.alpha.-phenoxyalkanecarboxylic acid amides
US4304936A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1979 |
| Grant date | Dec 8, 1981 |
| Priority date | — |
| Expiry date | Oct 11, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D295/088
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
3-Phenoxy-.alpha.-phenoxy-alkancarboxylic acid derivatives of the formula ##STR1## are disclosed as possessing a surprising selective herbicidal activity. In the formula, Hal is a halogen atom, m is an integer 1, 2 or 3, Y is a hydrogen or halogen atom or the cyano group, Z is a halogen atom or the cyano group, R.sub.1 is hydrogen or C.sub.1 -C.sub.8 alkyl, and R is an acid function. Methods are disclosed for combatting weeds in mono- and dicotyledonous cultures such as cereals, corn, rice, soya and cotton, which comprise applying to the locus to be protected from weeds a dosage of from 0.1 to 10.0 kilograms per hectare of the above compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.