发明授权
- 专利标题: Process for monobenzylation of p-substituted phenols
- 专利标题(中): 对取代苯酚的单苄基化方法
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申请号: US960999申请日: 1992-10-14
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公开(公告)号: US5258554A公开(公告)日: 1993-11-02
- 发明人: Reinhard Langer , Hans-Josef Buysch
- 申请人: Reinhard Langer , Hans-Josef Buysch
- 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: DEX4135073 19911024; DEX4139053 19911128
- 主分类号: C07B61/00
- IPC分类号: C07B61/00 ; C07B37/04 ; C07C37/16 ; C07C37/18 ; C07C39/367 ; C07C41/30 ; C07C43/23 ; C07C43/295 ; C07C255/53 ; C07C323/19 ; C07C39/14
摘要:
The invention relates to a process for the preparation of p-substituted o-benzylphenols by reaction of p-substituted phenols with optionally substituted benzyl halides, benzyl esters, benzyl alcohols or benzyl ethers in the presence of an acid catalyst at elevated temperature in a distillation column.
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