Process for preparing vinyl phosphonic acid

Details Process for preparing vinyl phosphonic acid Process for preparing vinyl phosphonic acid

2006-01-10

2006-01-10

Richter, Johann (Department: 1621)

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

Organic compounds

Phosphorus acids or salts thereof

Reexamination Certificate

active

06984752

ABSTRACT:
Vinyl phosphonic acid is produced by the hydrolysis of a vinyl phosphonic acid ester (e.g. “Bis Beta”) in the presence of a carbonyl compound (e.g. a monofunctional or difunctional aldehyde or a ketone).

REFERENCES:
patent: 4518745 (1985-05-01), Engelhardt et al.
patent: 0 065 739 (1982-12-01), None
patent: WO 92 02524 (1992-02-01), None
Qiao et al.: “Synthesis of a C-phosphate disaccharide as a potential inhibitor of peptidoglycan polymerization by transglycosylase”, Journal of Organic Chemistry, vol. 58, No. 13, 1993, pp. 3480-3482, XP002221483 American Chemical Society, Easton., US ISSN: 0022-3263, p. 3481, scheme I, preparation of compound 14.
Hernandez-Laguna et al.: “Electronic structure and conformational properties of vinylphosphonic acid and some related derivatives”, Journal of Physical Chemistry, vol. 98, No. 4, 1994, pp. 1109-1116, XP008009963, American Chemical Society, US ISSN: 0022-3654, p. 1110, paragraph 3.2.

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