发明申请
- 专利标题： METHOD FOR PREPARING THE CITRACONIC ANHYDRIDE AND METHOD FOR ISOMERIZING/DEHYDRATING ITACONIC ACID
- 专利标题（中）： 硝酸异辛酯的制备方法和异柠檬酸脱水/脱水的方法
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申请号： US12981813申请日： 2010-12-30
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公开(公告)号： US20110160466A1公开(公告)日： 2011-06-30
- 发明人: Hsi-Yen Hsu , Yu-Shan Chao
- 申请人： Hsi-Yen Hsu , Yu-Shan Chao
- 申请人地址： TW Hsinchu County
- 专利权人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
- 当前专利权人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
- 当前专利权人地址： TW Hsinchu County
- 优先权： TW098145759 20091230
- 主分类号： C07D307/36
- IPC分类号： C07D307/36
摘要：
The disclosure provides a method for preparing the citraconic anhydride and a method for isomerizing/dehydrating itaconic acid. The method for preparing the citraconic anhydride includes the following steps: providing itaconic acid as a starting material; and subjecting the itaconic acid to an isomerization/dehydration reaction in the presence of a catalyst to obtain the citraconic anhydride, wherein the catalyst includes a heteropolyacid or heteropolyacid salt.
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