Isolation of organic acids

Details Isolation of organic acids Isolation of organic acids

1978-09-29

1980-09-16

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30906

Patent

active

042229421

ABSTRACT:
A process for the purification of pseudomonic acid, particularly suitable for isolating the compound when prepared by bacterial culture, comprises making a solution in an organic solvent of the acidic components of the crude preparation substantially free of the neutral components. The polarity of the organic solvent is adjusted so that the pseudomonic acid crystallizes. This may be achieved either by adding a non-polar diluent such as n-heptane to the solution for example in methyl iso-butyl ketone; or by employing a di-C.sub.1-6 alkyl ether in which the acidic components dissolve and then crystallize out.

REFERENCES:
patent: 4139629 (1979-02-01), Rogers

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