发明授权
- 专利标题: Substituted benzocyclobutenes, a process for their preparation and their use
- 专利标题(中): 取代的苯甲酸酯,其制备方法及其使用
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申请号: US356826申请日: 1989-05-24
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公开(公告)号: US5220048A公开(公告)日: 1993-06-15
- 发明人: Marcus Baumann , Walter Fischer , Vratislav Kvita , Carl W. Mayer
- 申请人: Marcus Baumann , Walter Fischer , Vratislav Kvita , Carl W. Mayer
- 申请人地址: NY Ardsley
- 专利权人: Ciba-Geigy Corporation
- 当前专利权人: Ciba-Geigy Corporation
- 当前专利权人地址: NY Ardsley
- 优先权: CHX2008/88 19880527; CHX2755/88 19880719
- 主分类号: B05D1/20
- IPC分类号: B05D1/20 ; C07B37/10 ; C07C17/00 ; C07C17/23 ; C07C23/18 ; C07C25/22 ; C07C41/00 ; C07C43/225 ; C07C43/29 ; C07C63/68 ; C07C65/26 ; C07C67/00 ; C07C69/76 ; C07C201/00 ; C07C205/11 ; C07C205/12 ; C07C205/46 ; C07C233/65 ; C07C235/46 ; C07C255/52 ; C07C323/09 ; C07F7/08 ; C08G61/12 ; H01B1/12
摘要:
Benzocyclobutene-1,2-dichlorides, -bromides and -iodides which are substituted in the benzene ring are accessible in good yields and short reaction times by reacting substituted 1,2-(dichloromethyl or dibromomethyl)-benzenes with NaI in acetonitrile as the solvent. They can be used together with dienophils, for example 1,4-quinones, in Diels-Alder reactions.
公开/授权文献
- US5597821A Pyrazoloquinolines 公开/授权日:1997-01-28
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