Intermediates for the manufacture of herbicidal 1-{ 2-(cyclopropylcarbonyl) Phenyl! Sulfamoyl}-3-(4,6-dialkoxy-2-pyrimidinyl) urea compounds
US5847140A · kind A · utility
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3Claims
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Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D521/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is provided an effective and efficient, three step process for the manufacture of crop-selective, herbicidal 1-{2- (cyclopropylcarbonyl)-phenyl!sulfamoyl}-3-(4,6-dialkoxy-2-pyrimidinyl)urea compounds, and an intermediate for use therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.