O,O-Di-(substituted)-1-phosphonomethyl-3-(substituted)- 1,3-imid

Details O,O-Di-(substituted)-1-phosphonomethyl-3-(substituted)- 1,3-imid O,O-Di-(substituted)-1-phosphonomethyl-3-(substituted)- 1,3-imid

1985-02-15

1985-11-12

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07F 965

Patent

active

045529680

ABSTRACT:
A process for preparing N-phosphonomethylglycine which comprises:
(1) reacting a primary amine with formaldehyde to produce N,N',N"-tris-substituted-hexahydro-s-triazine;
(2) reacting the triazine with an haloacetyl halide, preferably chloroacetyl chloride, to form the N-(substituted)-N-halomethyl acetamide of the haloacetyl halide;
(3) reacting the amide with O,O-di-(substituted)-aminomethylphosphonate to form O,O-di-(substituted)-1-phosphonomethyl-3-(substituted)-1,3-imidazol-4-one; and
(4) hydrolyzing the 1,3-imadazol-4-one to yield N-phosphonomethylglycine.

REFERENCES:
patent: 3925406 (1975-12-01), Porret et al.

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