New benzene phosphonous acid compounds, their production and use

Details New benzene phosphonous acid compounds, their production and use New benzene phosphonous acid compounds, their production and use

1974-04-25

1976-05-04

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252 86, 252300, 260 4575P, 260107, 26029351, 2603268, 260 4575PS, C07F 948

Patent

active

039548473

ABSTRACT:
The purpose of the invention are new benzene phosphonous acid compounds in which two to four benzene nuclei are bound together and which contain one to three phosphorus atoms. The new compounds are free acids, their salts with inorganic cations, their esters, thioesters or amides. The invention concerns also the manufacture of these benzene phosphonous acid compounds and their use for the stabilization of organic materials.

REFERENCES:
patent: 3493639 (1970-02-01), Tars
patent: 3702878 (1972-11-01), Saito
patent: 3825629 (1974-07-01), Hofer et al.
Frank, "Chem. Rev.," Vol. 61 (Aug. 1961), pp. 389,393,395,422.
Freedman, "J. Am. Chem. Soc.," Vol. 77 (1955), pp. 6223-6224.

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