发明名称 |
DEHYDRATION OF A SUGAR ALCOHOL WITH MIXED COMBINATION OF ACID CATALYSTS |
摘要 |
A process for preparing cyclic dehydration products from sugar alcohols is described. The process involve using a mixed-acid catalyst reaction mixture containing a reducing acid, having a pKa of about 1.0-1.5, and at least a strong Brønsted acid or a Lewis acid, having a pKa ≤ 0, or both acids in a solution to dehydrate and ring close said sugar alcohol. Synergistically, the mixed-acid catalysis can produce greater amounts of the desired product at similar levels of compositional accountability than either of the component acid catalysts acting alone. |
申请公布号 |
WO2015156846(A1) |
申请公布日期 |
2015.10.15 |
申请号 |
WO2014US70050 |
申请日期 |
2014.12.12 |
申请人 |
ARCHER DANIELS MIDLAND COMPANY |
发明人 |
STENSRUD, KENNETH;HOWARD, STEPHEN;SANBORN, ALEXANDRA;HAGBERG, ERIK |
分类号 |
C07D307/12 |
主分类号 |
C07D307/12 |
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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