Patent · US Expired

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 dateJan 20, 2003
Grant dateJun 12, 2007
Priority date
Expiry dateMay 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.