Herbicidal 4-acyl-5-aryl isoxazole derivatives
US5366957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1992 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Jul 17, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D261/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
5-Aryl isoxazole derivatives of formula (I): ##STR1## wherein: Ar represents phenyl optionally substituted substituted by one or more groups R.sup.2 ; PA0 R represents hydrogen, --CO.sub.2 R.sup.3, --COR.sup.4, cyano, halogen, alkyl or haloalkyl; PA0 R.sup.1 represents alkyl, haloalkyl or cycloalkyl; PA0 R.sup.2 represents a halogen atom, R.sup.4, nitro, --CO.sub.2 R.sup.3, --OR.sup.4, --S(O).sub.m R.sup.4, --S(O).sub.m R.sup.5, --O--(CH.sub.2).sub.p --OR.sup.4 or an alkyl group substituted by --OR.sup.4 ; PA0 R.sup.3 and R.sup.4, which may be the same or different, each represent alkyl or haloalkyl; PA0 R.sup.5 represents optionally substituted phenyl; PA0 p represents an integer from 1 to 3; and PA0 m represents zero, 1 or 2; PA0 the herbicidal properties of these derivatives and their application to crop protection is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.