Process for the manufacture of aliphatic phosphonic acids

Details Process for the manufacture of aliphatic phosphonic acids Process for the manufacture of aliphatic phosphonic acids

1976-12-30

1977-12-20

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 938

Patent

active

040641635

ABSTRACT:
An improved process for the manufacture of an aliphatic phosphonic acid, particularly 2-chloroethylphosphonic acid, of the type wherein a diester of the aliphatic phosphonic acid, particularly bis-(2-chloroethyl)-2-chloroethylphosphonate, is reacted with anhydrous hydrogen halide, particularly hydrogen chloride, to produce a reaction product containing the aliphatic phosphonic acid, and the corresponding aliphatic halides particularly ethylene dichloride.

REFERENCES:
patent: 3626037 (1971-12-01), Randall et al.
patent: 3808265 (1974-04-01), Randall et al.
patent: 4018819 (1977-04-01), Rehn et al.
Gefter et al., "Chem. Abstracts", vol. 56 (1962), col. 501(g).

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