4-azasaccharines, 4-aza-dihydro- or -tetrahydro-saccharines
US4889933A · kind A · utility
2Cited by
4References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 12, 1988 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Sep 12, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D513/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of formula I ##STR1## in which R is H, or an aliphatic or aromatic radical, R.sup.1 is alkyl, R.sup.2 is alkyl, alkoxy, aryl, aryloxy, aralkyl, alkaryl, aralkyloxy, alkaryloxy, alkaralkyl or alkaralkyloxy, and one of R.sup.1 and R.sup.2 is H and the other has the meaning given above. These compounds are intermediates for the preparation of herbicidal sulfonylureas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.