N-phenylsulfonyl-N'-pyrimidinylureas as herbicides and plant growth regulants
US4664695A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1985 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Mar 29, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D521/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
N-Phenylsulfonyl-N'-pyrimidinylureas of the general formula I ##STR1## and the salts of these compounds with amines, alkali metal bases or alkaline earth metal bases or with quaternary ammonium bases, have good selective herbicidal and growth regulating properties when applied pre- and postemergence. The symbols in formula I have the following meanings: PA1 R.sub.1 is hydrogen, halogen, nitro, cyano, or an alkyl, alkoxy, alkylthio, alkylsulfonyl, alkylcarbonyl, alkylcarbamoyl or alkoxycarbonyl group, each unsubstituted or substituted by halogen or alkoxy, PA1 R.sub.2 is hydrogen, halogen, alkyl, or an alkyl, alkoxy or alkylthio group, each unsubstituted or substituted by halogen or alkoxy, PA1 R.sub.3 is alkyl, haloalkyl, alkoxy or haloalkoxy, PA1 R.sub.4 is hydrogen, halogen, R.sub.3, alkylamino or dialkylamino, PA1 R.sub.5 is hydrogen, alkyl or alkoxy, and PA1 X is an alkenylamino, cycloalkylamino or cycloalkenylamino group which may be further substituted, or is a carbamoylamido or sulfonylamino group as defined in the description, or is a 5- or 6-membered saturated heterocyclic ring system which is bonded through the nitrogen atom and which may contain a further oxygen, sulfur …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.