发明授权
- 专利标题: Preparation of 4,4-dimethyltetrahydrofuran-2,3-dione
- 专利标题(中): 制备4,4-二甲基四氢呋喃-2,3-二酮
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申请号: US719332申请日: 1985-04-03
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公开(公告)号: US4891435A公开(公告)日: 1990-01-02
- 发明人: Klaus Halbritter , Manfred Eggersdorfer
- 申请人: Klaus Halbritter , Manfred Eggersdorfer
- 申请人地址: DEX Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DEX Ludwigshafen
- 优先权: DEX3229026 19820804
- 主分类号: C07D307/60
- IPC分类号: C07D307/60
摘要:
4,4-Dimethyltetrahydrofuran-2,3-dione is prepared by reacting a dimethylpyruvate (II) with formaldehyde or a formaldehyde donor at 80.degree.-150.degree. C.
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