发明授权
- 专利标题: Pyridazines by magnesium halide catalyzed cyclization
- 专利标题(中): 哒嗪通过卤化镁催化环化
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申请号: US473140申请日: 1990-02-01
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公开(公告)号: US4962199A公开(公告)日: 1990-10-09
- 发明人: Gopi Yalamanchili
- 申请人: Gopi Yalamanchili
- 申请人地址: MO St. Louis
- 专利权人: Monsanto Company
- 当前专利权人: Monsanto Company
- 当前专利权人地址: MO St. Louis
- 主分类号: C07D237/24
- IPC分类号: C07D237/24
摘要:
The present invention relates to a process for making substituted 4-oxo-1,4-dihydropyridazines by reacting a 2-phenylhyrazono-3-oxoglutarate with an organic acid halide in the presence of magnesium halide.
公开/授权文献
- US4463215A Cadmium sulphide solar cell 公开/授权日:1984-07-31
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