PROCESS FOR PRODUCING N-tert-BUTYL-2-PYRAZINECARBOXAMIDE AND N-tert-BUTYL-2-PIPERAZINECARBOXAMIDE
申请人:KOEI CHEMICAL CO., LTD.
公开号:EP0680955A1
公开(公告)日:1995-11-08
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。