发明授权
US5663447A Process for the preparation of 2,2 dialkyl-arylidene-cycloalkanones
失效
制备2,2-二烷基 - 亚芳基 - 环烷酮的方法
- 专利标题: Process for the preparation of 2,2 dialkyl-arylidene-cycloalkanones
- 专利标题(中): 制备2,2-二烷基 - 亚芳基 - 环烷酮的方法
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申请号: US667894申请日: 1996-06-20
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公开(公告)号: US5663447A公开(公告)日: 1997-09-02
- 发明人: Nikolaus Muller , Thomas Essert
- 申请人: Nikolaus Muller , Thomas Essert
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX19523449.9 19950628
- 主分类号: B01J23/02
- IPC分类号: B01J23/02 ; C07B61/00 ; C07C45/68 ; C07C45/74 ; C07C49/683 ; C07C49/697 ; C07C49/753 ; C07C201/12 ; C07C205/45 ; C07C255/56 ; C07C45/45
摘要:
A particularly advantageous process for the preparation of 2,2-dialkyl-arylidene-cycloalkanones is characterized in that 2-alkyl-arylidene-cycloalkanones are reacted with alkyl halides in the presence of metal hydroxides and tertiary alcohols.
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