Salts comprising aryl-alkyl-substituted imidazolium and triazolium cations and the use thereof

US9260397B2 · kind B2 · utility

Assignee

• Technische Universitaet Dresden · DE

Inventors

• Thomas Strassner · Dresden, DE
• Sebastian Ahrens · Wiesloch, DE

Key dates

• Filing date: Jan 30, 2009
• Grant date: Feb 16, 2016
• Expiry date: Jan 30, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D15/38
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to salts comprising novel aryl-alkyl-substituted imidazolium and triazolium cations and arbitrary anions. The invention further relates to methods for the chemical conversion and separation of substances, comprising the salts according to the invention as solvents, solvent additives, or extraction means, and to the use of the salts according to the invention, for example as solvents or solvent additives in chemical reactions, as extracting agents for the separation of substances, or for storing hydrogen. According to the invention, the object is achieved by salts of the general formula (I), where X— is an anion, Y1 and Y2 are CH, or Y1 is CH and Y2 is N, or Y1 is N and Y2 is CH, n is a number from 1 up to an including 18, Q is selected from —CH3, —OH, —ORx, —S03H, —S03Rx, —COOH, —COORx, —CORx, NH2, —NHRx, —N(Rx)2, and —CH(Rx)2, Z is H or Rx, R1, R2, R3, R4 and R5 independently from each other are —H, -halogen, —N02, —NH2, —NHRx, —N(Rx)2, —Rx, —COORx or —ORx, where Rx is an optionally substituted and/or branched C1 to C18-alkyl group, excluding compounds of the general formula (I), where Y1 and Y2 are CH and R1, R2, R3, R4 and R5 are H, excluding compou…