Preparation of mono-N-sulphonylated diamines
US7232927B2 · kind B2 · utility
3Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2003 |
| Grant date | Jun 19, 2007 |
| Priority date | — |
| Expiry date | Aug 30, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/07
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for preparing mono-N-sulphonylated diamines by reacting diamines with sulphonyl halides in the presence of water, base and organic solvents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.