发明名称 |
Process for the production of five-membered or six-membered cyclic ethers, in particular of anhydropolyols |
摘要 |
The present invention relates to a process for the production of five-membered or six-membered cyclic ethers, in particular of anhydropolyols, by acid-catalysed cyclodehydration of polyols that contain at least two hydroxyl groups with a spacing enabling ring formation-that is to say, preferably with a spacing of 4 or 5 C atoms. The invention is directed in particular towards the production of anhydrotetritols, anhydropentitols and, particularly preferred, anhydrohexitols, from tetritols, pentitols and hexitols, respectively.
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申请公布号 |
US6013812(A) |
申请公布日期 |
2000.01.11 |
申请号 |
US19980182510 |
申请日期 |
1998.10.30 |
申请人 |
DEGUSSA AKTIENGESELLSCHAFT |
发明人 |
HAAS, THOMAS;BURKHARDT, OLAF;MORAWIETZ, MARCUS;VANHEERTUM, RUDOLF;BOURREL, AGNES |
分类号 |
C07D307/20;C07B35/06;C07C;C07C41/09;C07C43/18;C07D307/06;C07D307/08;C07D309/04;C07D493/04;C07H1/00;C07H3/00;(IPC1-7):C07D307/06 |
主分类号 |
C07D307/20 |
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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