发明授权
- 专利标题: Preparation of 4-dialkoxymethylpyrazoles
- 专利标题(中): 4-二烷氧基甲基吡唑的制备
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申请号: US97116申请日: 1993-07-27
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公开(公告)号: US5464508A公开(公告)日: 1995-11-07
- 发明人: Dieter Hermeling , Hartmann Koenig , Norbert Goetz
- 申请人: Dieter Hermeling , Hartmann Koenig , Norbert Goetz
- 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: DEX4225053.6 19920729
- 主分类号: C07D231/12
- IPC分类号: C07D231/12 ; C07D231/14 ; C07D231/16 ; C25B3/02
摘要:
A process for preparing 4-dialkoxymethylpyrazoles of the formula I ##STR1## where R.sup.1 is n-alkyl,R.sup.2 is a hydrocarbon radical,R.sup.3 and R.sup.4 are each hydrogen, a hydrocarbon radical, cyano, halogen or alkoxycarbonyl,entails electrochemical oxidation of a 4-methylpyrazole of the formula II ##STR2## in the presence of an alkanol R.sup.1 --OH.
公开/授权文献
- USD417424S Front fender for an automobile 公开/授权日:1999-12-07
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