Synthesis of H-phosphonate intermediates and their use in preparing the herbicide glyphosate

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United States of America Patent

PATENT NO 9035083
APP PUB NO 20140303394A1
SERIAL NO

14221931

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The esterfication of hypophosphorous acid is followed by reaction with another molecule of alcohol under the action of a nickel catalyst to provide a green method for the preparation of H-phosphonate diesters. This method avoids the need for any stoichiometric chlorine unlike those based on phosphorous trichloride.

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Patent Owner(s)

Patent OwnerAddress
TEXAS CHRISTIAN UNIVERSITY2800 S UNIVERSITY DRIVE FORT WORTH TX 76129

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fisher, Henry C Fort Worth, US 2 7
Montchamp, Jean-Luc Fort Worth, US 4 5

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