Benzo-fused cyclic compounds
US4902335A · kind A · utility
22Cited by
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8Claims
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Key dates
| Filing date | Jun 17, 1988 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Jun 17, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Herbicidal benzo-fused cyclic compounds of the formula ##STR1## wherein Q is ##STR2## Y is O or S, W is ##STR3## T is O, S, --NH-- or ##STR4## and R.sup.4 may represent, together with T, chlorine, PA1 Z is O or S, PA1 X is hydrogen or halogen, PA1 n is 0 or 1 and PA1 R is C.sub.3-6 cycloalkyl, an optionally substituted 5-membered heterocyclic group or an optionally substituted 6-membered heteroaromatic group which contains one to three nitrogen atoms, and salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.