3-Isoxazolylurea derivatives
US4062861A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1976 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | Mar 15, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D261/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Isoxazole derivatives represented by the formula: ##STR1## wherein R represents hydrogen, alkyl group, or aryl group, R.sup.1 represents hydrogen, or alkyl group, R.sup.2 represents acyl group, a ##STR2## group [R.sup.3 and R.sup.4 each represent hydrogen, alkyl group, alkenyl group, alkynyl group, aralkyl group, aryl group, alkoxy group, or alkylthio group; or optionally R.sup.3 and R.sup.4 are combined with each other directly or indirectly including another hetero atom (nitrogen, oxygen, or sulfur) to form a nitrogen-containing ring], or a --CO--Y--R.sup.5 group [R.sup.5 represents alkyl group, alkenyl group, alkynyl group, aralkyl group, or aryl group, and Y represents oxygen, or sulfur], and X represents hydrogen, alkyl group, or halogen, or R and X are optionally combined each other to form an alkylene group, said alkyl group, aralkyl group, and aryl group each being optionally substituted with one or more members selected from halogen, alkyl group, alkoxy group, nitro group, and hydroxy group, are prepared by eleven routes. The isoxazole derivatives are useful as herbicides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.