发明授权
US06992206B2 Method for producing 3-trifluoromethylphenyl-4-cyanobenzyl ketone
有权
3-三氟甲基苯基-4-氰基苄基酮的制备方法
- 专利标题: Method for producing 3-trifluoromethylphenyl-4-cyanobenzyl ketone
- 专利标题(中): 3-三氟甲基苯基-4-氰基苄基酮的制备方法
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申请号: US10512487申请日: 2003-04-25
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公开(公告)号: US06992206B2公开(公告)日: 2006-01-31
- 发明人: Stefan Engel , Michael Keil , Christian Ott , Michael Rack
- 申请人: Stefan Engel , Michael Keil , Christian Ott , Michael Rack
- 申请人地址: DE Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DE Ludwigshafen
- 代理机构: Novak Druce & Quigg
- 代理商 Jason D. Voight
- 优先权: DE10218764 20020426
- 国际申请: PCT/EP03/04327 WO 20030425
- 国际公布: WO03/091203 WO 20031106
- 主分类号: C07C253/30
- IPC分类号: C07C253/30
摘要:
A process is described for preparing 3-trifluoromethylphenyl 4-cyanobenzyl ketone by reacting a C1–C2-alkyl 3-trifluoromethylbenzoate with 4-tolunitrile in an aprotic polar solvent or an aprotic polar solvent mixture in the presence of at least an equimolar amount of a base which is selected from potassium alkoxides of primary C1–C4-alkanols.
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