Process for the purification of nicotinic acid amide

Details Process for the purification of nicotinic acid amide Process for the purification of nicotinic acid amide

1981-07-29

1984-05-08

Jiles, Henry R.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21172, C07D21184, C07D21356

Patent

active

044476140

ABSTRACT:
Crude nicotinamide is purified by a recrystallization and thereby is particularly freed from nicotinic acid and salts of nicotinic acid. As solvent there is used 2-methylpropanol-1 containing water. The warm solution after dissolving the crude nicotinamide is treated with ion exchangers.

REFERENCES:
patent: 2412749 (1946-12-01), Pike
patent: 2471518 (1949-05-01), Duesel
patent: 2483250 (1949-09-01), Suter
patent: 3678060 (1972-07-01), Finkelstein
Krewson, J. Amer. Chem. Soc., vol. 65, pp. 2256-2257, (1943).
Galat, J. Amer. Chem. Soc., vol. 70, p. 3945, (1948).

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