Method for refining 11-cyano-undecanoic acid

Details Method for refining 11-cyano-undecanoic acid Method for refining 11-cyano-undecanoic acid

1975-01-23

1976-10-19

Garvin, Patrick P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260404, C07C10104

Patent

active

039870715

ABSTRACT:
A crude 11-cyano-undecanoic acid in the form of the free acid or its ammonium salt is refined by bringing a refining gas containing ozone therein into contact with a solution of the crude 11-cyano-undecanoic acid or its ammonium salt in a substantially anhydrous organic solvent which is non-reactive with the ozone at a temperature of 0.degree. to 100.degree. C, for example, formic acid, acetic acid, propionic acid, chloroform, tetrachloromethane, dichloroethane or trichloroethane.

REFERENCES:
patent: 2862940 (1958-12-01), Otsuki et al.
patent: 3217027 (1965-11-01), Little

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