Process for preparing phosphoric acid esters

US6489502B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Nikolaus Janke · Dormagen, DE
• Manfred Pieroth · Recklinghausen, DE
• Dieter Heinz · Heppenheim, DE
• Werner Bäcker · Bad Mergentheim, DE

Key dates

• Filing date: Dec 4, 2000
• Grant date: Dec 3, 2002
• Expiry date: Dec 4, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing phosphoric acid esters, in particular a process for preparing monomeric bridged bisaryl diphosphates, wherein a water-binding agent is added to the reaction solution.