Process for the preparation of aminoacetic acids with a tertiary hydrocarbon radical in the .alpha.-position, or their nitriles

US5831119A · kind A · utility

Assignee

• Huels Aktiengesellschaft · DE

Inventors

• Frank Bauer · Wyomissing, US
• Wolfgang Kleemiss · Haltern, DE
• Marcel Feld · Cologne, DE

Key dates

• Filing date: Jun 10, 1997
• Grant date: Nov 3, 1998
• Expiry date: Jun 10, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C253/30
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of aminoacetic acids or aminoacetonitriles with a tertiary hydrocarbon radical in the .alpha.-position in which monoamide derivatives of malonic acid are subjected to a Hofmann rearrangement.