Document Type

Patent

Patent Number

US Patent 4,478,761

Patent agency

United States Patent and Trademark Office

Publication Date

10-23-1984

Assignee

University of Iowa Research Foundation (Iowa City, IA, US)

Application Number

06/487,543

Date Filed

1983-04-22

Total Pages

5 pages

Abstract

Fluorine-containing phosphonates and phosphonic acids are described. The method of preparation is a reaction of trialkylphosphites with dihalodifluoromethanes or a reaction of the salts of dialkylphosphites with halodifluoromethylphosphonates. The corresponding phosphonic acids are prepared by hydrolysis of the phosphonates.

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URL

https://ir.uiowa.edu/patents/35