Process for the preparation of 2,4-dinitroaniline

US4102927A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gert Volkwein · Kelkheim, DE
• Konrad Baessler · Frankfurt am Main, DE

Key dates

• Filing date: Aug 10, 1976
• Grant date: Jul 25, 1978
• Expiry date: Aug 10, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C209/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

2,4-DINITROANILINE IS OBTAINED IN HIGH YIELD AND QUALITY IN A SAFE REACTION BY INTRODUCING 4-CHLORO-1,3-DINITROBENZENE INTO AT LEAST THREE-FOLD STOICHIOMETRIC AMOUNT OF AQUEOUS AMMONIA OF A CONCENTRATION OF 15 TO 40% BY WEIGHT AT A TEMPERATURE OF 60.degree. TO 90.degree. C.