Anion-complexing compound, method of preparing the same, an ion-selective membrane and a sensor provided with such a compound or membrane
US6468406B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2000 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Nov 27, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D259/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention is directed to an anion-complexing compound with the formula I wherein R1 is a six-membered ring, Y′ is —NHC(X)NH—, and Y″ is selected from the group consisting of —NHC(X′)—, —C(X′)NH—, and —NHC(X′) NH—; and wherein X and X′, independently of one another, is a sulphur or oxygen atom. R4 and R4′ are either identical represented by a variety of groups or together represent a group such that the compound has a macrocyclic structure. The invention is also directed to a method of preparing such a compound, an ion-selective membrane, as well as a sensor provided with such a compound or membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.