发明申请
- 专利标题: Process for Preparing 3,6-Dichloropyridazine-1-Oxide
- 专利标题(中): 制备3,6-二氯哒嗪-1-氧化物的方法
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申请号: US11886440申请日: 2006-03-20
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公开(公告)号: US20080167461A1公开(公告)日: 2008-07-10
- 发明人: Yoshihisa Tsukamoto , Noriaki Kudo , Toshio Kaneko , Hiroyuki Komai
- 申请人: Yoshihisa Tsukamoto , Noriaki Kudo , Toshio Kaneko , Hiroyuki Komai
- 申请人地址: JP Minato-ku, Tokyo
- 专利权人: SANKYO AGRO COMPANY, LIMITED
- 当前专利权人: SANKYO AGRO COMPANY, LIMITED
- 当前专利权人地址: JP Minato-ku, Tokyo
- 优先权: JP2005-082174 20050322; JP2005-082175 20050322
- 国际申请: PCT/JP06/05486 WO 20060320
- 主分类号: C07D237/14
- IPC分类号: C07D237/14
摘要:
A process for preparing 3,6-dichloropyridazine-1-oxide which comprises reacting 3,6-dichloropyridazine with an acid anhydride and hydrogen peroxide of a concentration of 60% or less or a urea hydrogen peroxide addition compound.
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