Process for the preparation of phloroglucinol

US4057588A · kind A · utility

Assignee

• Akzona Incorporated · US

Inventors

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

Key dates

• Filing date: Jan 21, 1976
• Grant date: Nov 8, 1977
• Expiry date: Jan 21, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C37/045
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Phloroglucinol is prepared by chlorinating benzenetricarboxylic acid-(1,3,5)-triamide in an aqueous, inorganic acid medium to form benzene-tricarboxylic acid-(1,3,5)-tri-N-chloramide, which is a new compound; the latter is converted by treatment with ammonia into 1,3,5-triureido-benzene, which is hydrolyzed in inorganic acid solution to phloroglucinol.