Ionic liquids having uronium cations and a process for making same

US8859813B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Nikolai Ignatyev · Duisburg, DE
• Urs Welz-Biermann · Mannheim, DE
• German Bissky · Hamm, DE
• Helge Willner · Neheim, DE
• Andriy Kucheryna · Wuppertal, DE

Key dates

• Filing date: Aug 21, 2012
• Grant date: Oct 14, 2014
• Expiry date: Apr 25, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/301
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to salts having uronium cations and to a process for preparing same comprising alkylating urea C(O)(NR2)2 using an ester ARo.