发明公开
EP0090679A1 Process for preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran
失效
一种用于2,3-二氢-2,2-二甲基-7-羟基苯并呋喃的制备方法。
- 专利标题: Process for preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran
- 专利标题(中): 一种用于2,3-二氢-2,2-二甲基-7-羟基苯并呋喃的制备方法。
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申请号: EP83400334.5申请日: 1983-02-17
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公开(公告)号: EP0090679A1公开(公告)日: 1983-10-05
- 发明人: Franko-Filipasic, Borivoj Richard , Hobson, Philip Bruce
- 申请人: FMC Corporation
- 申请人地址: 2000 Market Street Philadelphia Pennsylvania 19103 US
- 专利权人: FMC Corporation
- 当前专利权人: FMC Corporation
- 当前专利权人地址: 2000 Market Street Philadelphia Pennsylvania 19103 US
- 代理机构: Lecca, Jean (FR)
- 优先权: US349804 19820218
- 主分类号: C07D307/86
- IPC分类号: C07D307/86
摘要:
A process for preparing 2,3-dihydro-2,2-dimethyl-7-hy- droxybenzofuran in which 2-methallyloxyphenol is heated to a temperature in the range of 150°C to 250°C in the presence of a solvent and a Lewis acid catalyst under an autogenous pressure of 20 to 60 psig is disclosed and exemplified.
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