Process for production of vinylphosphonic acids and silyl...

Details Process for production of vinylphosphonic acids and silyl... Process for production of vinylphosphonic acids and silyl...

2006-06-06

2006-06-06

Solola, Taofiq (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus acids or salts thereof

Reexamination Certificate

active

07057065

ABSTRACT:
A process for preparing vinylphosphonic acid compounds and silyl esters thereof in which a bis(haloalkyl)vinylphosphonate is reacted with an organosilyl halide to produce a silyl ester which can then be converted to the acid by reaction with a proton donor.

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patent: WO 03/016319 (2003-02-01), None
Robert Rabinowitz, “The Reactions of Phosphonic Acid Esters with Acid Chlorides. A very Mild Hydrolytic Route”, Nov. 1963, pp. 2975-2978.
A.J. Gutierrez et al., “Dealkylation of Phosphonate Esters with Chlorotrimethylsilane”, 2001, pp. 1299-1302.
Charles E. McKenna et al., “The Facile Dealkylation of Phosphonic Acid Dialkyl Esters By Bromotrimethylsilane”, 1977, pp. 155-158.
G. M. Blackburn et al., J.C.S. Chem. Comm., 1978, p. 870.
Y. Machida et al., “A Useful Method for the Dealkylation of Dialkyl Phosphonates”, 1979, vol. 9, pp. 97-102.
Hans Gross et al., “Entalkyllerung von Phosphonsäureestern mit labilen funktionellen Gruppen mittels Trimethylsilylbromid”, 1978, pp. 344-350.

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