发明名称 |
PROCESS FOR THE PREPARATION OF 3,3-DIMETHYLBUTANAL |
摘要 |
3,3-Dimethylbutanal is prepared from 3,3-dimethylbutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converting 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation. |
申请公布号 |
WO0102332(A3) |
申请公布日期 |
2001.03.22 |
申请号 |
WO2000US17946 |
申请日期 |
2000.06.29 |
申请人 |
THE NUTRASWEET COMPANY |
发明人 |
EBNER, JERRY, R.;GUO, ZHI;HERSHMAN, ARNOLD;KLEIN, LORAINE, M.;MCGHEE, WILLIAM, D.;PASTER, MARK, D.;PRAKASH, INDRA |
分类号 |
C07C45/29;C07B61/00;C07C17/275;C07C29/06;C07C29/09;C07C29/12;C07C29/124;C07C29/132;C07C29/147;C07C31/125;C07C45/00;C07C45/38;C07C47/02;C07C229/24;C07C303/24;C07C305/08;C07K1/113;C07K5/072;C07K5/075 |
主分类号 |
C07C45/29 |
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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