Method for preparing formylphosphonic acid

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United States of America Patent

PATENT NO 6762317
APP PUB NO 20030114706A1
SERIAL NO

10236626

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An improved process for the manufacture of formylphosphonic acid derivatives is reported. An aminomethylphosphonic acid substrate is contacted with a reagent selected from the group consisting of water, an alcohol, a phenol compound, and mixtures thereof and an oxidizing gas in the presence of a catalyst to form a reaction product mixture containing a formylphosphonic acid derivative and the conditions under which said contacting is carried out are controlled so that no more than 50% of the formylphosphonic acid derivative formed in the reaction product mixture is consumed by reaction with the reagent.

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Patent Owner(s)

  • MONSANTO COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Franczyk, II Thaddeus S St. Louis, MO 14 38

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