发明授权
US5446199A Preparation of halomethylbenzoyl cyanides and novel halomethylbenzoyl
cyanides
失效
制备卤代甲基苯甲酰氰和新的卤代甲基苯甲酰氰
- 专利标题： Preparation of halomethylbenzoyl cyanides and novel halomethylbenzoyl cyanides
- 专利标题（中）： 制备卤代甲基苯甲酰氰和新的卤代甲基苯甲酰氰
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申请号： US216416申请日： 1994-03-23
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公开(公告)号： US5446199A公开(公告)日： 1995-08-29
- 发明人: Heinz Isak , Thomas Wettling , Michael Keil , Bernd Wolf , Reinhard Doetzer
- 申请人： Heinz Isak , Thomas Wettling , Michael Keil , Bernd Wolf , Reinhard Doetzer
- 申请人地址： DEX Ludwigshafen
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DEX Ludwigshafen
- 优先权： DEX4311722.8 19930408
- 主分类号： C07C253/14
- IPC分类号： C07C253/14 ; C07C255/32 ; C07C255/40
摘要：
A process for preparing halomethylbenzoyl cyanides IPh-CO-CN I(Ph=phenyl radical substituted by chloromethyl or bromomethyl which, if desired, can additionally carry 1-4 further radicals) by reacting halomethylbenzoyl chlorides IIPh-CO-Cl IIwith an alkali metal cyanide or transition metal cyanide, if appropriate in an organic diluent, and novel halomethylbenzoyl cyanides I' ##STR1## (X=halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, CF.sub.3, C.sub.1 -C.sub.5 -alkyl-(C.sub.1 -C.sub.5 -alkyl)hydroxyimino or C.sub.1 -C.sub.5 -alkyl-(C.sub.2 -C.sub.5 -alkenyl)hydroxyimino; m=0 to 4 and Y=chloromethyl or bromomethyl) are described.The halomethylbenzoyl cyanides I are important intermediates for the synthesis of plant protection agents.
公开/授权文献
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