发明授权
US5292945A Process for preparing
.alpha.-chloro-.alpha.-oximino-4-hydroxyacetophenone
失效
制备α-氯-α-肟基-4-羟基苯乙酮的方法
- 专利标题： Process for preparing .alpha.-chloro-.alpha.-oximino-4-hydroxyacetophenone
- 专利标题（中）： 制备α-氯-α-肟基-4-羟基苯乙酮的方法
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申请号： US17550申请日： 1993-02-16
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公开(公告)号： US5292945A公开(公告)日： 1994-03-08
- 发明人: John R. Durrwachter , Charlet R. Lindley , Graham N. Mott
- 申请人： John R. Durrwachter , Charlet R. Lindley , Graham N. Mott
- 申请人地址： NJ Somerville
- 专利权人： Hoechst Celanese Corporation
- 当前专利权人： Hoechst Celanese Corporation
- 当前专利权人地址： NJ Somerville
- 主分类号： C07C259/02
- IPC分类号： C07C259/02 ; C07C53/00
摘要：
A process for the preparation of .alpha.-chloro-.alpha.-oximino-4-hydroxyacetophenone by reacting nitrosyl chloride with a mixture of 4-hydroxyacetophenone and a strong acid catalyst such as hydrogen chloride is disclosed. The nitrosyl chloride is introduced as a gas into the reactor to contact 4-hydroxyacetophenone and said acid catalyst dissolved in a solvent therein.
公开/授权文献
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