Process for the preparation of N,N-bis-(2-hydroxyalkyl)-aminomethane phosphonic acid dimethyl ester

US4246206A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karl-Heinz Mitschke · Odenthal, DE
• Manfred Kapps · Bensberg, DE

Key dates

• Filing date: Oct 23, 1978
• Grant date: Jan 20, 1981
• Expiry date: Oct 23, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5353
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the preparation of N,N-bis-(2-hydroxyalkyl)-aminomethane phosphonic acid dimethyl esters corresponding to the following general formula: ##STR1## wherein each R, may be the same or different and represents hydrogen or, preferably, a lower, linear or branched alkyl radical or halogen-substituted alkyl radical containing from 1 to 6 carbon atoms.