Process for the preparation of 1-carbamoyl-3-(3,5-dichlorophenyl)-hydantoins
US4076941A · kind A · utility
2Cited by
3References
13Claims
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Key dates
| Filing date | Dec 15, 1976 |
| Grant date | Feb 28, 1978 |
| Priority date | — |
| Expiry date | Dec 15, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D233/80
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Fungicidal 1-carbamoyl-3-(3,5-dichlorophenyl)-hydantoins are prepared by reacting 3 mols an isocyanate of the general formula R -- N .dbd. C .dbd. 0 (wherein R is alkyl of 1-4 carbons or alkenyl of 2-4 carbons) with one mol of 3-(3,5-dichlorophenyl)-ureidoacetic acid in an anhydrous medium in the presence of an organic base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.