发明公开
EP0680955A1 PROCESS FOR PRODUCING N-tert-BUTYL-2-PYRAZINECARBOXAMIDE AND N-tert-BUTYL-2-PIPERAZINECARBOXAMIDE
失效
用于生产的N-叔丁基-2-吡嗪羧基酰胺和N-叔丁基-2-哌嗪。
- 专利标题： PROCESS FOR PRODUCING N-tert-BUTYL-2-PYRAZINECARBOXAMIDE AND N-tert-BUTYL-2-PIPERAZINECARBOXAMIDE
- 专利标题（中）： 用于生产的N-叔丁基-2-吡嗪羧基酰胺和N-叔丁基-2-哌嗪。
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申请号： EP95900932.5申请日： 1994-11-21
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公开(公告)号： EP0680955A1公开(公告)日： 1995-11-08
- 发明人: WATANABE, Nanao Koei Chemical Co., Ltd. , ASAHI, Sadao Koei Chemical Co., Ltd. , KURANISHI, Hideki Koei Chemical Co., Ltd. , KURAHASHI, Takashi Koei Chemical Co., Ltd.
- 申请人： KOEI CHEMICAL CO., LTD.
- 申请人地址： 6-17, Koraibashi-4-chome, Chuo-ku Osaka-shi, Osaka 541 JP
- 专利权人： KOEI CHEMICAL CO., LTD.
- 当前专利权人： KOEI CHEMICAL CO., LTD.
- 当前专利权人地址： 6-17, Koraibashi-4-chome, Chuo-ku Osaka-shi, Osaka 541 JP
- 代理机构： Türk, Dietmar, Dr. rer. nat.
- 优先权： JP315996/93 19931122; JP18974/94 19940118
- 国际公布： WO9514675 19950601
- 主分类号： C07D241/04
- IPC分类号： C07D241/04 ; C07D241/24
摘要：
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.
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