Process for making phosphonic acid dichlorides

Details Process for making phosphonic acid dichlorides Process for making phosphonic acid dichlorides

1986-11-13

1988-04-05

Moyer, Donald B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 942

Patent

active

047357487

ABSTRACT:
Phosphonic acid dichlorides of the general formula I ##STR1## are made by reacting thionyl chloride with a phosphonic acid dialkylester of the general formula II ##STR2## and using, as the catalyst, a compound of the general formulae III, IV or V

REFERENCES:
patent: 2847469 (1958-08-01), Dawson et al.
patent: 4155932 (1979-05-01), Masaki et al.
patent: 4213922 (1980-07-01), Maier
Patai, Saul The Chemistry of Acyl Halides (1972), Interscience, Publ. pp 43-44.
Lee, John B., J. Am. Chem. Society (1966) pp. 3340-3341.

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