发明名称 |
Verfahren zur Herstellung von 3-Cyano-3,5,5-trimethyl-1-cyclohexanon. |
摘要 |
The present invention relates to a process for the preparation of 3-cyano-3,5,5 min -trimethyl-1-cyclohexanone by means of the reaction of isophorone with an alkaline cyanide. The reaction is performed starting from isophorone and an equivalent amount of cyanide in a homogeneous water/organic solvent solution at a temperature comprised between 20 DEG C and the reflux temperature, maintaining a pH between 14 and 8 by means of a gradual addition of an inorganic acid during the reaction. |
申请公布号 |
DE69009394(D1) |
申请公布日期 |
1994.07.07 |
申请号 |
DE1990609394 |
申请日期 |
1990.09.19 |
申请人 |
CAFFARO S.P.A. SOCIETA PER L'INDUSTRIA CHIMICA ED ELETTROCHIMICA, MAILAND/MILANO |
发明人 |
PONTOGLIO, ENRICO, I-25100 BRESCIA;PARODI, SANDRO, I-25080 NUVOLENTO |
分类号 |
C07B61/00;C07C253/08;C07C253/10;C07C255/46;(IPC1-7):C07C255/46 |
主分类号 |
C07B61/00 |
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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