Process for the purification of nicotinic acid amide i i

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

C - Chemistry, Metallurgy

07

D

260/297.6

C07D 213/82 (2006.01) C07D 213/81 (2006.01)

Patent

CA 1136148

ABSTRACT OF THE DISCLOSURE Crude nicotinamide is purified by a recrystallization and in this way freed especially from nicotinic acid and salts of nicotinic acid. As solvent there is used a 2-methylpropanol- 1 containing water. The recrystallization takes place at a pH between about 7 and 10. In this process an outstandingly pure nicotamide is obtained with favorable yield with only a single recrystallization.

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