发明名称 |
Process for the production of cyclopropylmethylketone. |
摘要 |
<p>A process is described for the production of the known intermediate cyclopropylmethyl-ketone which delivers a high yield, few side products, high reaction efficiency and turnover, and is more viable practically and commercially. In the presence of an excess of a Periodic Table Group I or Group II metal halide or quaternary phosphonium halide, alpha -acetyl- gamma -butyrolactone is led continuously into a reaction vessel at 170-200 DEG C and cyclopropylmethylketone distilled off continuously. The halide is recovered and recycled in the process.</p> |
申请公布号 |
GR3017470(T3) |
申请公布日期 |
1995.12.31 |
申请号 |
GR19950402524T |
申请日期 |
1995.09.21 |
申请人 |
CIBA-GEIGY AG |
发明人 |
HUNSTON, ROGER, DR.;WADITSCHATKA, RUDOLF, DR. |
分类号 |
C07C45/59;C07C45/67;C07C49/293;(IPC1-7):C07C49/293 |
主分类号 |
C07C45/59 |
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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