This research aimed to determine the effect of variation of moles acetonitrile on the quantity of organonitrogen compound synthesized products from α-pinene and acetonitrile. The isolation of α-pinene from turpentine oil over fractional distillation method. The synthesis of organonitrogen compounds is done at room temperature for 5 hours with the mole ratio α-pinene : acetonitrile : sulfuric acid (1:1:4), (1:5:4), and (1:10:4). These results showed that the amount of α-pinene produced from fractional distillation is 88,46%. Organonitrogen compounds were obtained are N-(1,7,7-trimetilbisiklo [2,2,2] heptane-2-yl) acetamide and N-(2,6,6-trimetilbisiklo [3,1,1] heptane-2-yl) acetamide. Efficiency of product N-(1,7,7-trimetilbisiklo[2,2,2] heptan-2-yl)acetamide of variation (1:1:4), (1:5:4), and (1:10:4) are 7,78%, 10,277% and 1,45%. Whereas product N-(2,6,6-trimetilbisiklo[3,1,1]heptan-2-yl)acetamide are 2,34%, 2,67%, and 0,188%.