Separation of aniline and p-fluoroaniline

Details Separation of aniline and p-fluoroaniline Separation of aniline and p-fluoroaniline

1983-10-24

1985-07-30

Warren, Charles F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564412, 564442, C07C 8526, C07C 8524

Patent

active

045323526

ABSTRACT:
A process is disclosed for the separation of p-fluoroaniline from a mixture, containing aniline and p-fluoroaniline, by contacting the mixture with a mineral acid in the presence of an organic solvent. The corresponding salt of p-fluoro-aniline is insoluble and can easily be isolated by conventional means such as filtration. If desired, the isolated salt can be converted to p-fluoroaniline by reaction with a base.

REFERENCES:
Morrison et al., Organic Chemistry (3d ed., 1976) pp. 730-731.
Goetz et al., "Quantenchemische Untersuchung der Zusammenhange von PE-, UV- und pKa-Daten bei Aromatischen Phosphinen und Aminen", Liebigs Ann. Chem. 1977 (556-564).
Marschner, "Korrelation Zwischen Photoelektronen und Elektronen-Spektren-IV", Tetrahedron vol. 31, pp. 2303-2308.

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