Peroxide process for producing N-phosphonomethylglycine

Details Peroxide process for producing N-phosphonomethylglycine Peroxide process for producing N-phosphonomethylglycine

1990-06-25

1991-08-27

Evans, J. E.

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

Organic compounds

Phosphorus acids or salts thereof

C07F 938

Patent

active

050434756

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.

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patent: 4579689 (1986-04-01), Hershman et al.
patent: 4582650 (1986-04-01), Felthowe
patent: 4853159 (1989-08-01), Riley et al.
patent: 4898972 (1990-02-01), Fields et al.
patent: 4952723 (1990-08-01), Fields et al.

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