发明授权
- 专利标题： Process for preparing 2,3-dimethyl-2,3-butanediol
- 专利标题（中）： 制备2,3-二甲基-2,3-丁二醇的方法
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申请号： US272229申请日： 1981-06-10
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公开(公告)号： US4404410A公开(公告)日： 1983-09-13
- 发明人: Boy Cornils , Jurgen Weber , Wolfgang Bernhagen , Helmut Springer
- 申请人： Boy Cornils , Jurgen Weber , Wolfgang Bernhagen , Helmut Springer
- 申请人地址： DEX Oberhausen
- 专利权人： Ruhrchemie Aktiengesellschaft
- 当前专利权人： Ruhrchemie Aktiengesellschaft
- 当前专利权人地址： DEX Oberhausen
- 优先权： DEX2844637 19781013
- 主分类号： B01J31/00
- IPC分类号： B01J31/00 ; C07B61/00 ; C07C27/00 ; C07C29/03 ; C07C31/20 ; C07C67/00
摘要：
An improved process for the preparation of 2,3-dimethyl-2,3-butanediol is disclosed wherein hydrogen peroxide and 2,3-dimethylbutene are reacted with formic acid at 50.degree. to 70.degree. C. while stirring, the 2,3-dimethylbutene and hydrogen peroxide being introduced into the formic acid simultaneously but separately. The diol can be obtained by hydrolysis of the pinacol monoformate formed.
公开/授权文献
- US6089963A Attachment system for lens surfacing pad 公开/授权日：2000-07-18
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