Preparation of d-2-amino-1-butanol salts

Details Preparation of d-2-amino-1-butanol salts Preparation of d-2-amino-1-butanol salts

1971-12-02

1978-03-21

Raymond, Richard L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260584R, C07C 8900, C07C 8904

Patent

active

RE0295884

ABSTRACT:
A racemic mixture of dl-2-amino-1-butanol is resolved with separation of the d-2-amino-1-butanol by crystallizing as a salt with L(+)-tartaric acid from an essentially anhydrous solution in ethanol or methanol. The salt is decomposed with calcium hydroxide to yield the d-2-amino-1-butanol. Water may be added to the residual anhydrous solution to separate the l-2-amino-1-butanol. Other listed volatile solvents may be present in the anhydrous ethanol or methanol without inhibiting the sharp separation.

REFERENCES:
patent: 3116332 (1963-12-01), Sullivan
patent: 3401194 (1968-09-01), Zoja
Radke et al.: JACS, vol. 76, pp. 2801-2802 (1954).
Roggero et al.: Compt. Rend, vol. 253, pp. 2704-2705 (1961).

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