Patent · US Active

Diaryl alkylphosphonates and methods for preparing same

US7888534B2 · kind B2 · utility

5Cited by

50References

24Claims

0Family size

Assignee

FRX Polymers, Inc. · US

Inventors

Dieter Freitag · Krefeld, DE
Savvas Hadjikyriacou · Lowell, US

Key dates

Filing date	Oct 17, 2006
Grant date	Feb 15, 2011
Priority date	—
Expiry date	Sep 14, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F9/4006
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A method for preparing substantially pure optionally substituted diaryl alkylphosphonates from an optionally substituted triarylphosphite and an optionally substituted trialkylphosphite or an optionally substituted alkanol under special reaction conditions is described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.