Herbicidally-active heterocyclic compounds
US4183741A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1977 |
| Grant date | Jan 15, 1980 |
| Priority date | — |
| Expiry date | May 20, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D471/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are provided the compounds of the formula: ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, each represent hydrogen, a substituted or unsubstituted alkyl, aryl or aralkyl group, a nitro group, a cyano group or a halogen atom, R.sup.5 represents a quaternized nitrogen-containing heterocyclyl radical linked via a ring carbon atom, X represents one equivalent of an anion, R.sup.7 represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted, saturated or unsaturated heterocyclyl group which, if nitrogen-containing, is quaternized, linked via a ring carbon atom, and R.sup.6 either represents an alkyl group or, when R.sup.7 represents a quaternized nitrogen-containing heterocyclyl group, and the quaternized nitrogen atom is ortho to the linked ring carbon atom, may represent a methylene, dimethylene, trimethylene or alkyl-substituted ethenylene chain to that nitrogen atom. The compounds are selective herbicides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.