Process for the purification of tryptophane and derivatives of t

Details Process for the purification of tryptophane and derivatives of t Process for the purification of tryptophane and derivatives of t

1979-11-15

1981-08-11

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26032614A, 260701, C07D20920

Patent

active

042833370

ABSTRACT:
Tryptophane and tryptophane derivatives are purified by treating them in an inert solvent at a temperature between about 20.degree. C. and the boiling point of the mixture with a salt of dithionous acid. Preferably there is used as solvent a mixture of water and a lower aliphatic carboxylic acid. Normally a single treatment results in a pure, colorless, satisfactory product.

REFERENCES:
patent: 2435125 (1948-01-01), Britton et al.
patent: 2565354 (1951-01-01), Cohen
Cotton et al., Adv. Inor. Chem., pp. 430 & 431, Interscience, N.Y. (1962).
Kirk-Othmer, Ency. of Chem. Tech., 2nd Ed., vol. 19, pp. 420 & 421 (1969).

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