发明公开
EP1445248A4 PROCESSES FOR PREPARATION OF CYCLOPROPYLETHANOL, CYCLO-PROPYLACETONITRILE AND INTERMEDIATES OF BOTH
审中-公开
过程对于这两个连接产生与环丙基CYLCOPROPYLACETONITRIL和中间产品
- 专利标题： PROCESSES FOR PREPARATION OF CYCLOPROPYLETHANOL, CYCLO-PROPYLACETONITRILE AND INTERMEDIATES OF BOTH
- 专利标题（中）： 过程对于这两个连接产生与环丙基CYLCOPROPYLACETONITRIL和中间产品
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申请号： EP02779965申请日： 2002-10-31
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公开(公告)号： EP1445248A4公开(公告)日： 2006-03-22
- 发明人: UJITA KATSUJI
- 申请人： KURARAY CO
- 专利权人： KURARAY CO
- 当前专利权人： KURARAY CO
- 优先权： JP2001345555 2001-11-12; JP2002029169 2002-02-06
- 主分类号： C07C29/14
- IPC分类号： C07C29/14 ; C07C45/58 ; C07C249/08 ; C07C251/38 ; C07C253/00 ; C07C255/31 ; C07C31/133 ; C07C47/11
摘要：
A process for preparation of cyclopropylethanol which comprises subjecting a 3-cyclopropyl-2,3-epoxypropionic ester to solvolysis, treating the obtained product with an acid to form cyclopropylacetaldehyde, and reducing this aldehyde; and a process for preparation of cyclopropylacetonitrile which comprises reacting cyclopropylacetaldehyde obtained in the above process with hydroxylamine or a salt thereof to form cyclopropaneacetaldehyde oxime and reacting this oxime with acetic anhydride. According to the present invention, cyclopropylethanol or cyclopropylacetonitrile can be industrially advantageously prepared at a low cost.
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