Heterocyclic compounds
US5266554A · kind A · utility
21Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Dec 14, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/96
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to novel compounds of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 have the meanings given in the description, to enol ethers and salts thereof and their preparation, to weed control compositions that comprise such compounds as active ingredients, and to the use of the compounds or compositions to control weeds. The invention relates also to certain novel starting materials and to the preparation thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.