Process for preparing α, α-dialkyl-α-hydroxymethyl-carboxylic acid derivatives

US7268253B2 · kind B2 · utility

Assignee

• Consortium für elektrochemische Industrie GmbH · DE

Inventors

• Andreas J. Boehm · Schongau, DE
• Hermann Petersen · Burghausen, DE
• Juergen Stohrer · Pullach, DE

Key dates

• Filing date: Nov 29, 2005
• Grant date: Sep 11, 2007
• Expiry date: Nov 29, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/343
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a novel process for hydroxymethylating noncyclic α,α-dialkylcarboxylic acid derivatives with formaldehyde using amide bases at temperatures of from −40° C. up to the boiling point of the solvent or solvent mixture used.