Replacement of precious noble metal catalysts with low-cost non-noble heterogeneous catalysts for synthesis of nitrogen-containg organic chemicals holds tremendous promise for the clean synthesis.Herein,we report the highly active cobalt catalysts for 1) the reduction and reductive coupling of nitro compounds into amines and their derivatives;2) the reduction amination of carbonyl compounds and the hydrogenation of nitriles into primary amines;3) hydrogenation of structurally diverse nitriles.