1,3-oxazin-4-one derivatives, herbicides containing the same, and novel intermediates for preparing the same
US5436224A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 30, 1993 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Sep 30, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D319/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,3-Oxazin-4-one derivatives represented by general formula (I) ##STR1## wherein R.sup.1 is a lower alkyl group, a lower alkenyl group, an aryl group which may be substituted, or an aralkyl group which may be substituted; R.sup.2 is a hydrogen atom or a lower alkyl group; R.sup.3 is a lower alkyl group, an aryl group which may be substituted, or an aralkyl group which may be substituted; and R.sup.4 and R.sup.5, independently, each is a lower alkyl group, or R.sup.4 and R.sup.5, taken together with the carbon atom to which they are bonded, combine to form a 3- to 8-membered carbocyclic group which may have a branch of a lower alkyl group. These compounds have broad herbicidal spectra and potent herbicidal activities and in addition high safety to useful crops, so that they are useful as herbicides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.