Process for preparing free-flowing 2-nitro-4-acetylamino-anisole

US4139558A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Gerhard Stopp · Leverkusen, DE
• Rolf Schimpf · Leverkusen, DE

Key dates

• Filing date: Mar 3, 1977
• Grant date: Feb 13, 1979
• Expiry date: Mar 3, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C233/16
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

2-Nitro-4-acetylamino-anisole is prepared directly in the form of a moist, free-flowing material by nitrating 4-acetylamino-anisole and then treating the reaction mixture with water at slightly elevated temperatures, e.g., 20-60.degree. C.