Preparation of anhydrous 2-amino-1-methoxypropane

US5910612A · kind A · utility

Assignee

• BASF SE

Inventors

• Joachim Simon · Grevenbroich, DE
• Andreas Henne · Neustadt, DE
• Heinz Lingk · Frankenthal (Pfalz), DE

Key dates

• Filing date: May 21, 1998
• Grant date: Jun 8, 1999
• Expiry date: May 21, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C213/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The process for preparing anhydrous 2-amino-1-methoxypropane proceeds by PA1 (a) admixing a 2-amino-1-methoxypropane-containing water-containing reaction mixture, obtainable from the reaction of 1-methoxy-2-propanol with ammonia on a catalyst, with sodium hydroxide solution, forming an aqueous phase containing sodium hydroxide solution and a 2-amino-1-methoxypropane-containing phase, PA1 (b) separating off the 2-amino-1-methoxypropane-containing phase from the aqueous phase and PA1 (c) distilling the 2-amino-1-methoxypropane-containing phase, an azeotrope of water and 2-amino-1-methoxypropane, which is recycled to step (a) or (b), first being produced and anhydrous 2-amino-1-methoxypropane then being produced.