Preparation of phosphonic and/or phosphinic acids

Details Preparation of phosphonic and/or phosphinic acids Preparation of phosphonic and/or phosphinic acids

1975-08-29

1978-01-17

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2605024P, 260632R, C07F 930, C07F 938, C07C 2700

Patent

active

040692450

ABSTRACT:
Preparation of phosphonic and/or phosphinic acids by hydrolytic cleavage of phosphonic and/or phosphinic acid alkyl esters in the presence of the phosphonic and/or phosphinic acid by carrying out the hydrolysis at a temperature of from 160.degree. to 250.degree. C with the use of at least a stoichiometric amount of water, and by distilling off the alkanol formed, optionally together with water.

REFERENCES:
patent: 2776985 (1957-01-01), McKinnis
patent: 3184496 (1965-05-01), Baranauckas et al.
patent: 3202692 (1965-08-01), Weil et al.
patent: 3666838 (1972-05-01), Kollenitsch et al.
Canavan et al., "J. Chem. Soc." (London) Jan. 1962, pp. 331-334.

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