发明名称 |
Process for the preparation of 1-acetoxy-3-chloro-pentanone-4. |
摘要 |
1. A process for the preparation of 1-acetoxy-3-chloro-pentan-4-on (I) by reacting alpha-chloro-alpha-aceto-gamma-butyrolactone (II) with an acetylating agent in an aqueous hydrochloric acid medium, wherein (II) is reacted with from 0.8 to 1.2 moles of water and from 1 to 2 moles of acetic acid per mole of (II) in the presence of hydrogen chloride at from 70 to 100 degrees C for from 1 to 8 hours, and the reaction mixture is then worked up by distillation to give (I). |
申请公布号 |
EP0037474(A1) |
申请公布日期 |
1981.10.14 |
申请号 |
EP19810101866 |
申请日期 |
1981.03.13 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
LITTMANN, WOLFGANG, DR.;PAUST, JOACHIM, DR. |
分类号 |
C07C67/10;C07C;C07C67/00;C07C69/14;C07C69/63 |
主分类号 |
C07C67/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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