公开(公告)号：EP1192119A2

公开(公告)日：2002-04-03

申请号：EP00943304.6

申请日：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

IPC分类号： C07C47/02 ,  C07C45/00 ,  C07C45/38 ,  C07C303/24 ,  C07C303/26 ,  C07C29/12 ,  C07C229/24 ,  C07C29/147 ,  C07C29/124 ,  C07C29/09 ,  C07C29/36 ,  C07C29/132

CPC分类号： C07C303/24 ,  C07C17/275 ,  C07C29/095 ,  C07C29/12 ,  C07C29/124 ,  C07C29/132 ,  C07C29/147 ,  C07C29/149 ,  C07C45/002 ,  C07C45/38 ,  C07C47/02 ,  C07K5/06113 ,  Y02P20/127 ,  C07C19/01 ,  C07C305/08 ,  C07C31/125

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.

公开(公告)号：EP1192119B1

公开(公告)日：2006-03-22

申请号：EP00943304.6

申请日：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

IPC分类号： C07C47/02 ,  C07C45/00 ,  C07C45/38 ,  C07C303/24 ,  C07C303/26 ,  C07C29/12 ,  C07C229/24 ,  C07C29/147 ,  C07C29/124 ,  C07C29/09 ,  C07C29/36 ,  C07C29/132

CPC分类号： C07C303/24 ,  C07C17/275 ,  C07C29/095 ,  C07C29/12 ,  C07C29/124 ,  C07C29/132 ,  C07C29/147 ,  C07C29/149 ,  C07C45/002 ,  C07C45/38 ,  C07C47/02 ,  C07K5/06113 ,  Y02P20/127 ,  C07C19/01 ,  C07C305/08 ,  C07C31/125

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.