Conversion of hydroxymethyl-iminodiacetic acid to...

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

C - Chemistry, Metallurgy

07

C

C07C 229/16 (2006.01) C07C 227/14 (2006.01) C07C 227/18 (2006.01) C07F 9/38 (2006.01)

Patent

CA 2109269

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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