发明公开
EP0684946A1 PROCESS FOR THE PREPARATION OF BIS(2-BENZOXAZOLYL)STILBENES
失效
用于生产双(2- BENZOXAZULYL)样式BENEN。
- 专利标题: PROCESS FOR THE PREPARATION OF BIS(2-BENZOXAZOLYL)STILBENES
- 专利标题(中): 用于生产双(2- BENZOXAZULYL)样式BENEN。
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申请号: EP94910157.0申请日: 1994-02-14
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公开(公告)号: EP0684946A1公开(公告)日: 1995-12-06
- 发明人: WANG, Richard, Hsu-Shien
- 申请人: EASTMAN CHEMICAL COMPANY
- 申请人地址: 100 North Eastman Road Kingsport, TN 37660 US
- 专利权人: EASTMAN CHEMICAL COMPANY
- 当前专利权人: EASTMAN CHEMICAL COMPANY
- 当前专利权人地址: 100 North Eastman Road Kingsport, TN 37660 US
- 代理机构: Wibbelmann, Jobst, Dr.
- 优先权: US19930020914 19930222
- 国际公布: WO1994019333 19940901
- 主分类号: C07D263
- IPC分类号: C07D263 ; B01J23 ; B01J31 ; C07B61
摘要:
Disclosed is an improved process for the preparation of 4,4'-bis(2-benzoxazolyl)stilbene compounds by the reaction of 4,4'-stilbenedicarboxylic acid with 2-aminophenol compounds in the presence of a tin or titanium catalyst and certain solvents.
公开/授权文献
- EP0684946B1 PROCESS FOR THE PREPARATION OF BIS(2-BENZOXAZOLYL)STILBENES 公开/授权日:1997-04-23
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