发明授权
- 专利标题: Preparation process of 4,4-dihydroxybiphenyl
- 专利标题(中): 4,4-二羟基联苯的制备方法
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申请号: US116733申请日: 1987-11-04
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公开(公告)号: US4804788A公开(公告)日: 1989-02-14
- 发明人: Yutaka Konai , Tadashi Nakamura , Takayuki Tanonaka , Kazuo Yoshida , Yoshihisa Machida
- 申请人: Yutaka Konai , Tadashi Nakamura , Takayuki Tanonaka , Kazuo Yoshida , Yoshihisa Machida
- 申请人地址: JPX
- 专利权人: Kureha Kagaku Kogyo K.K.
- 当前专利权人: Kureha Kagaku Kogyo K.K.
- 当前专利权人地址: JPX
- 优先权: JPX61-263841 19861107
- 主分类号: C07C37/08
- IPC分类号: C07C37/08 ; C07B61/00 ; C07C27/00 ; C07C37/50 ; C07C39/15 ; C07C67/00 ; C07C39/14
摘要:
4,4'-Dihydroxybiphenyl is prepared by decomposing 4,4'-di(2-hydroxy-2-propyl)biphenyl with hydrogen peroxide and an acid catalyst in acetonitrile as a solvent. Especially, this process minimizes the formation of byproducts and permits easy purification of the intended product.
公开/授权文献
- USD429935S Towel bar support 公开/授权日:2000-08-29
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