Dihalogenated herbicidal sulphones
US5123953A · kind A · utility
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3References
8Claims
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Key dates
| Filing date | Apr 10, 1990 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Apr 10, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/61
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of formula: ##STR1## in which: n=0, 1, 2 PA0 f=0, 1 PA0 Ar is an optionally substituted phenyl or pyridyl group PA0 U a chlorine or bromine atom PA0 V a bromine or chlorine or iodine atom PA0 B is C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.10 cycloalkyl, which are optionally substituted by 1 to 6 halogen atoms, phenyl or pyridyl or oxidized pyridyl, which are optionally substituted. Use of these compounds as herbicides which are selective but especially antigraminaceous at preemergence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.