Process for the preparation of onium salts with a tetrafluoroborate anion having a reduced halide content

US8101749B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Nikolai (Mykola) Ignatyev · Duisburg, DE
• Urs Welz-Biermann · Mannheim, DE
• Andriy Kucheryna · Wuppertal, DE
• Helge Willner · Neheim, DE

Key dates

• Filing date: Nov 18, 2005
• Grant date: Jan 24, 2012
• Expiry date: Oct 30, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/5407
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing onium salts with tetrafluoroborate anion by reacting an onium halide with an oxonium tetrafluoroborate, sulfonium tetrafluoroborate, or triphenylcarbonium tetrafluoroborate.