Preparation of arylphosphinic acids

Details Preparation of arylphosphinic acids Preparation of arylphosphinic acids

1981-03-27

1982-02-23

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 928

Patent

active

043168590

ABSTRACT:
Arylphosphinic acids are prepared by reacting an aryl compound with phosphorus trichloride in the presence of aluminum trichloride to form a first reaction product, adding the first reaction product to water to precipitate a second reaction product and then treating the second reaction product sequentially with a halogenating agent and with water to form the arylphosphinic acid.

REFERENCES:
patent: 2137792 (1938-11-01), Woodstock
patent: 2594454 (1952-04-01), Kosolapoff
patent: 2632018 (1953-03-01), Kosolapoff
patent: 3903208 (1975-09-01), Hofer et al.
patent: 3974217 (1976-08-01), Miles
Higgins et al., "J. Am. Chem. Soc.",vol. 77 (1955), pp. 1864-1866.
Frank, "Chemical Reviews", vol. 61 (1961), pp. 389-424.
Kosolapoff, "Organophosphorus Compounds", pp. 43-46 and 128.

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