A process for producing an N-tert-butyl-2-pyrazinecarboxamide represented by general formula (2) by the reaction of a cyanopyrazine represented by general formula (1) with tert-butyl alcohol in the presence of sulfuric acid; and a process for producing an N-tert-butyl-2-piperazinecarboxamide represented by general formula (3) by the hydrogenation of an N-tert-butyl-2-pyrazinecarboxamide represented by the above general formula (2) in the presence of Raney nickel or Raney cobalt.
一种在
硫酸存在下通过通式(1)代表的
氰吡嗪与
叔丁醇反应生产通式(2)代表的N-叔丁基-2-
吡嗪甲酰胺的工艺;以及在雷尼
镍或雷尼
钴存在下,通过上述通式(2)所代表的 N-叔丁基-2-
吡嗪甲酰胺的氢化反应生产通式(3)所代表的 N-叔丁基-2-
哌嗪甲酰胺的工艺。