2-Phenyl-5-benzoxazolylalkanoic acid purification process

Details 2-Phenyl-5-benzoxazolylalkanoic acid purification process 2-Phenyl-5-benzoxazolylalkanoic acid purification process

1976-09-07

1978-05-02

Rush, Raymond V.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D26356

Patent

active

040874370

ABSTRACT:
Crude preparations of 2-phenyl-5-benzoxazolylalkanoic acids are purified by forming the ammonium salt thereof in an organic solvent and thermally reconverting the separated ammonium salt to the acid. Gaseous ammonia is a by-product.

REFERENCES:
patent: 3849489 (1974-11-01), Rudzki
patent: 3912748 (1975-10-01), Evans et al.

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