发明名称 |
PREPARATION OF 3-AMINOMETHYL-3,5,5-TRIMETHYLCYCLOHEXYLAMINE HAVING A CIS/TRANS ISOMER RATIO OF AT LEAST 70:30 |
摘要 |
A process for the preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamin e having a cis/trans isomer ratio of at least 70:30 by a) imination of 3-cyano-3,5,5-trimethylcyclohexanone with ammonia in the presence of an imination catalyst at temperatures of from 200 to 150.degree. C and pressures of from 1.5 to 30 MPa to form 3-cyano-3,5,5-trimethylcyclo- hexanone imine followed by b) hydrogenation of the 3-cyano-3,5,5-4rimethylcyclohexanone imine in the presence of ammonia over a catalyst containing copper and/or a Group VIII metal at a temperature of from 80.degree. to 160.degree.C and under a pressu re of from 5 to 30 MPa, wherein the catalytic hydrogenation of the 3-cyano-3,5,5- trimethylcyclohexanone imine is carried out in the presence of an acid used in an amount such as to give an acid number of from 0.1 to 2, based on 3-cyano-3,5,5-trimethylcyclohexanone used.
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申请公布号 |
CA2255235(C) |
申请公布日期 |
2007.11.06 |
申请号 |
CA19982255235 |
申请日期 |
1998.12.15 |
申请人 |
WAHL, PETER;WITZEL, TOM;VOIT, GUIDO;ROS, KARL-HEINZ;LUYKEN, HERMANN;BREITSCHEIDEL, BORIS |
发明人 |
WAHL, PETER;WITZEL, TOM;VOIT, GUIDO;ROS, KARL-HEINZ;LUYKEN, HERMANN;BREITSCHEIDEL, BORIS |
分类号 |
C07C211/36;C07C209/26;C07C209/48;C07C209/52 |
主分类号 |
C07C211/36 |
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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