发明公开
EP1955992A2 Process for the preparation of 1-aryl-3, 4-dihydro-1h-napthalene-2-one
有权
韦尔法罕zur Herstellung伊宁1-芳基-3,4-二氢-1h-萘胺-2-酮
- 专利标题： Process for the preparation of 1-aryl-3, 4-dihydro-1h-napthalene-2-one
- 专利标题（中）： 韦尔法罕zur Herstellung伊宁1-芳基-3,4-二氢-1h-萘胺-2-酮
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申请号： EP08250429.1申请日： 2008-02-06
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公开(公告)号： EP1955992A2公开(公告)日： 2008-08-13
- 发明人: Takenaka, Junji , Kuwashima, Nobumasa , Takahashi, Toshiaki
- 申请人： Tokuyama Corporation
- 申请人地址： 1-1, Mikage-cho Shunan-shi, Yamaguchi 745-8648 JP
- 专利权人： Tokuyama Corporation
- 当前专利权人： Tokuyama Corporation
- 当前专利权人地址： 1-1, Mikage-cho Shunan-shi, Yamaguchi 745-8648 JP
- 代理机构： Cresswell, Thomas Anthony
- 优先权： JP2007028254 20070207
- 主分类号： C07C45/58
- IPC分类号： C07C45/58 ; C07C49/423
摘要：
1-aryl-3,4-dihydro-1H-naphthalene-2-one is prepared by isomerizing an epoxy compound represented by the following general formula,
wherein a is an integer of 0 to 5, b is an integer of 0 to 4, and R 1 to R 6 are hydrogen atoms or substituents such as alkyl groups,
in an organic solvent in the presence of magnesium sulfate. This process makes it possible to prepare the 1-aryl-3,4-dihydro-1H-naphthalene-2-one safely and in a high yield without using highly explosive compounds such as lithium perchlorate.
wherein a is an integer of 0 to 5, b is an integer of 0 to 4, and R 1 to R 6 are hydrogen atoms or substituents such as alkyl groups,
in an organic solvent in the presence of magnesium sulfate. This process makes it possible to prepare the 1-aryl-3,4-dihydro-1H-naphthalene-2-one safely and in a high yield without using highly explosive compounds such as lithium perchlorate.
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