Ureido or carbamate derivatives of crown ethers and of silicon usable for preparing supports intended for the separation by chromatography of metal cations and of organic molecules comprising amine functional groups
US7230123B2 · kind B2 · utility
2Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2003 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | May 17, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/1804
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to ureido or carbamate derivatives of crown ethers and of silicon of formula:These derivatives can be grafted to silica gel for the purpose of obtaining supports for the chromatographic separation of cations or of molecules comprising amine functional groups, such as amino acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.