发明名称 |
VERFAHREN ZUR HERSTELLUNG VON 2-METHYL-2-SEK.-BUTYL-1,3-PROPANDIOL |
摘要 |
<p>A process for the preparation of 2-methyl-2-sec.butyl-1,3-propanediol comprising hydroformylating 2-methyl-1-butene with carbon monoxide and hydrogen in the presence of a first catalyst to form the substance 3-methyl-pentanal, condensing said substance with formaldehyde, or a compound which forms formaldehyde under the conditions of condensation in a basic medium to form alpha-sec.butyl-acrolein, partially hydrogenating said acrolein in the presence of a second catalyst to form the material 2,3-dimethyl pentanal, and converting said material into said diol by treatment with formaldehyde, or a compound which forms formaldehyde under the conditions of conversion, in the presence of a strong base as a third catalyst. The compound of the present invention is useful as an intermediate in the production of pharmaceuticals and drugs; in particular, the production of carbamates which are useful as tranquilizers and blood pressure lowering agents.</p> |
申请公布号 |
DE2933919(A1) |
申请公布日期 |
1981.03.26 |
申请号 |
DE19792933919 |
申请日期 |
1979.08.22 |
申请人 |
RUHRCHEMIE AG |
发明人 |
BERNHAGEN,DIPL.-CHEM.DR.,WOLFGANG;WEBER,DIPL.-CHEM.DR.,JUERGEN;BAHRMANN,DIPL.-CHEM.DR.,HELMUT;SPRINGER,HELMUT |
分类号 |
B01J23/00;C07B61/00;C07C27/00;C07C29/38;C07C31/20;C07C45/50;C07C45/62;C07C45/75;C07C47/02;C07C67/00;(IPC1-7):07C31/18;07C29/16 |
主分类号 |
B01J23/00 |
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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