发明授权
- 专利标题： Method for isomerizing diacetoxybutenes
- 专利标题（中）： 异构化二乙酰氧基丁烯的方法
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申请号： US444384申请日： 1982-11-26
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公开(公告)号： US4465853A公开(公告)日： 1984-08-14
- 发明人: Yoshinori Yoshida , Hironobu Shinohara
- 申请人： Yoshinori Yoshida , Hironobu Shinohara
- 申请人地址： JPX Tokyo
- 专利权人： Japan Synthetic Rubber Co., Ltd.
- 当前专利权人： Japan Synthetic Rubber Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX54-73552 19790613; JPX55-12533 19800206
- 主分类号： B01D3/34
- IPC分类号： B01D3/34 ; C07C67/02 ; C07C67/293 ; C07C67/34 ; C07C69/16
摘要：
3,4-Diacetoxybutene-1 can be easily isomerized into 1,4-diacetoxybutene-2 by contacting it with a cation exchange resin. This method is capable of providing an excellent reaction result and is free of the problem of corrosion of apparatus as well as the problem of formation of by-products. When acetic acid is present in said isomerization operation, the reaction rate is increased. Further, combination of this isomerization method with separation of 1,4-diacetoxybutene-2 from 3,4-diacetoxybutene-1 by distillation enables production of high-purity 1,4-diacetoxybutene-2 at a high efficiency.
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