Process for manufacturing D camphorate of L carnitinamide and D

Details Process for manufacturing D camphorate of L carnitinamide and D Process for manufacturing D camphorate of L carnitinamide and D

1979-07-06

1981-03-03

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

564198, C07C 9126

Patent

active

042540534

ABSTRACT:
A process for manufacturing the D camphorate of L carnitinamide and the D camphorate of D carnitinamide is disclosed, wherein D,L carnitinamide hydrochloride is converted to D,L carnitinamide free base which directly reacts with D camphoric acid either as an aqueous suspension or in solid form, thus obtaining a solution of D camphorate of D,L carnitinamide. The resolution of the optical isomers is achieved by drying this solution and taking up the residue with isopropanol, whereupon the D camphorate of L carnitinamdide crystallizes out of the isopropanol solution and the D camphorate of D carnitinamide remains in solution.

REFERENCES:
patent: 3632623 (1972-01-01), Becke et al.
Binon et al., Chem. Absts. 67, 64703(x), 1967.
Marly, "Chem. Absts., 64, 11314(e), 1966.
Mueller et al., Hoppe-Seyler's Z. Physiol. Chem., 353(4), 618-622, 1972.

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