发明申请
US20050171373A1 Method for producing 3-trifluromethylphenyl-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-trifluromethylphenyl-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: US20050171373A1公开(公告)日: 2005-08-04
- 发明人: Stefan Engel , Michael Keil , Christian Ott , Michael Rack
- 申请人: Stefan Engel , Michael Keil , Christian Ott , Michael Rack
- 优先权: DE10218764.9 20020426
- 国际申请: PCT/EP03/04327 WO 20030425
- 主分类号: C07B61/00
- IPC分类号: C07B61/00 ; C07C253/30 ; C07C255/56
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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