Conversion of hydroxymethyl-iminodiacetic acid to phosphonomethy

Details Conversion of hydroxymethyl-iminodiacetic acid to phosphonomethy Conversion of hydroxymethyl-iminodiacetic acid to phosphonomethy

1992-10-29

1994-05-17

Shippen, Michael L.

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

Organic compounds

Phosphorus acids or salts thereof

562568, C07C22900, C07F 938

Patent

active

053129725

ABSTRACT:
A process for preparing N-phosphonomethyl iminodiacetic acid wherein solutions of an alkali metal salt of IDA are reacted with formaldehyde so as to form the alkali metal salt of hydroxymethyliminodiacetic acid (HMIDA). The HMIDA can be subsequently reacted with a phosphorous source such as phosphorous acid to produce PMIDA in good yield.

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