Herbicidal cyclohexane-1,3-dione derivatives
US4640708A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1984 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Mar 20, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D217/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula ##STR1## wherein: R.sup.5 is a bicyclic aryl or nitrogen-containing heteroaryl ring system such as naphthyl, quinolyl, isoquinolyl or tetrahydroisoquinolyl, optionally substituted by a wide variety of groups; PA1 R.sup.4 and R.sup.1 are preferably hydrogen but may be other groups and PA1 R.sup.2 and R.sup.3 are selected from alkyl, haloalkyl, alkenyl, haloalkenyl and alkynyl, show high general grass-killing activity with good selectivity to many broad-leaf crops and in some instances selectivity to small-grain cereals. Processes for the preparation of compounds of formula I, intermediates in the preparation of compounds I and the herbicidal properties of compounds I are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.