Peroxide process for producing n-phosphonomethylglycine

Details Peroxide process for producing n-phosphonomethylglycine Peroxide process for producing n-phosphonomethylglycine

1991-04-15

1991-12-31

Gray, Bruce

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

Organic compounds

Phosphorus acids or salts thereof

C07F 935

Patent

active

050774310

ABSTRACT:
A process is provided for producing N-phosphonomethylglycine by the oxidation of N-phosphonomethyliminodiacetic acid with a peroxide to form an intermediate N-phosphonomethyliminodiacetic acid-N-oxide. Thereafter, the N-phosphonomethyliminodiacetic acid-N-oxide is converted to N-phosphonomethylglycine by adding a catalytic amount of a metal selected from the group consisting of iron, zinc, aluminum, vanadium and copper, or a compound selected from the group consisting of water-soluble vanadium compounds, ferrous salts and cuprous salts.

REFERENCES:
patent: 3950402 (1976-04-01), Franz
patent: 3954848 (1976-05-01), Franz
patent: 4147719 (1979-04-01), Franz
patent: 4853159 (1989-08-01), Riley et al.
patent: 4952723 (1990-08-01), Fields et al.
patent: 5023369 (1991-06-01), Fields

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