Preparation of bis-n-chloramides of cycloaliphatic carboxylic acids

US4259258A · kind A · utility

Assignee

• Akzona Incorporated · US

Inventors

• Hans Zengel · Kleinwallstadt, DE
• Manfred Bergfeld · Zell am Harmersbach, DE

Key dates

• Filing date: Jul 26, 1978
• Grant date: Mar 31, 1981
• Expiry date: Jul 26, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C233/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel Bis-N-chloramides of aromatic dicarboxylic acids, such as alkyl-isophthalic or alkyl terephthalic acid, or of cycloaliphatic dicarboxylic acids such as cyclohexane dicarboxylic acid, are obtained by chlorinating the corresponding diamides, in an aqueous acid medium at a temperature of about 0.degree. to 40.degree. C.