发明名称 |
PROCESSO PARA A OBTENCAO DE 1,4-BUTANODIAL |
摘要 |
The preparation of 1,4-butandial (succindialdehyde) is obtained using acrolein. The acrolein is first converted with an alkanol into 3,3-dialkoxy-1-propene and this is then hydroformylated in the presence of hydridotristriphenylphosphine-rhodiumcarbonyl mixed with triphenylphosphine or triphenylphosphite as the catalyst. The thereby obtained 4,4-dialkoxy-butanal is removed from the hydroformylation product by means of distillation and is then hydrolyzed to 1,4-butandial. |
申请公布号 |
BR8500420(A) |
申请公布日期 |
1985.09.10 |
申请号 |
BR19858500420 |
申请日期 |
1985.01.30 |
申请人 |
DEGUSSA AG. |
发明人 |
JUAN ANDRADE;GUENTER PRESCHER;MARC SAMSON |
分类号 |
C07C45/42;B01J31/00;B01J31/24;C07B61/00;C07C41/56;C07C45/00;C07C45/49;C07C45/50;C07C45/51;C07C47/12;C07C47/198;C07C67/00;(IPC1-7):C07C47/12 |
主分类号 |
C07C45/42 |
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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