TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The catalyst is ion and/or compound of alkali metal, alkaline metal, ammonium salt and its mixtures. The catalyst is calcium chloride, magnesium chloride and/or ammonium chloride. The hypohalite is alkali metal and alkaline earth metal hypochlorites, hypobromites, and/or hypoiodites. The hypohalite is sodium hypochlorite, potassium hypochlorite, sodium hypobromite, potassium hypobromite, sodium hypoiodite, potassium hypoiodite, magnesium hypochlorite, lithium hypochlorite and/or calcium hypochlorite.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The aminopyridine is isolated in presence of a solvent and at a temperature of 5-120 degrees C at atmospheric, subatmospheric or superatmospheric pressures. The reaction is carried out at a temperature of -20 to 20 degrees C, preferably -10 to 10 degrees C. The reaction is carried out optionally in presence of a catalyst. The isolation is performed at a temperature of 30-90 degrees C at atmospheric, subatmospheric or superatmospheric pressures. Preferred Components: The solvent is cetyl alcohol, cyclohexanol, decanol, 2-hexanol, butanol, isobutanol, 2-2-methyltetrahydrofuran, pentanol, octanol, tert-amyl alcohol, n-propanol, isopropanol, furfuryl alcohol, acetonitrile, diethyl ether and tetrahydrofurfuryl alcohol. The aminopyridine is substituted aminopyridine and the pyridine carboxamide is substituted pyridine carboxamide. The substitution group is H or any alkyl groups having straight or branched chain. The pyridine carboxamide is 2-pyridine carboxamide, 3-pyridine carboxamide or 4-pyridine carboxamide and aminopyridine is 2-aminopyridine, 3-aminopyridine or 4-aminopyridine respectively. The solvent used is recyclable. EXAMPLE - Sodium hypochlorite (800 g) was charged in a round bottom flask. 2-Methyl-5-nicotinamide (200 g) was added slowly to the solution at -5 to 0 degrees C in 1 to 2 hours. After completion of the reaction, caustic lye solution (260 g) was added and the mass was heated to 90-100 degrees C for 1 hour. The obtained crude product was extracted with butanol at slightly elevated temperature. The solvent was recovered from organic layer and mass was crystallized to give 5-amino-2-methyl pyridine (106.3 g).