Dialkyl 2-alkylcarbonatoethanephosphonates

US4608207A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Josef Buysch · Krefeld, DE
• Peter Mues · Duisburg, DE

Key dates

• Filing date: May 4, 1984
• Grant date: Aug 26, 1986
• Expiry date: May 4, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/4015
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Dialkyl vinylphosphonates are prepared by heating the new dialkyl 2-alkylcarbonatoethanephosphonates in the presence of catalysts. Also disclosed is a process for making the new dialkyl 2-alkylcarbonatoethanephosphonate by transesterification of a dialkyl 2-carboxyethanephosphonate with a dialkyl carbonate in the presence of a transesterification catalyst.