Process of producing n-acylaminomethane phosphonic acids

Details Process of producing n-acylaminomethane phosphonic acids Process of producing n-acylaminomethane phosphonic acids

1979-06-19

1981-04-14

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

546 22, C07F 938

Patent

active

042619297

ABSTRACT:
The present invention is concerned with the novel and highly advantageous process of producing N-acylaminomethanephosphonic acid in a one-step process by reacting a acylonitrile with formaldehyde or a formaldehyde-yielding compound and phosphorous acid in the presence or absence of the solvent at an elevated temperature, preferably at a temperature between about 60.degree. C. and the boiling point of the mixture. The reaction may be carried with or without a polar aprotic solvent and/or an acidic catalyst.

REFERENCES:
patent: 2304156 (1942-12-01), Englemann et al.
patent: 4009204 (1977-02-01), Krueger et al.
patent: 4098814 (1978-07-01), Sommer et al.

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