Method for making benzoylphenylureas
US4529819A · kind A · utility
9Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1984 |
| Grant date | Jul 16, 1985 |
| Priority date | — |
| Expiry date | Jun 21, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C275/54
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a benzoylphenylurea which comprises reacting a benzoyl chloride with an alkali metal cyanate in the presence of a catalyst and an inert solvent to prepare a benzoyl isocyanate which is treated in situ with an appropriate aniline compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.