发明名称 |
IMPROVED SYNTHESIS OF ANHYDROGLYCITOL ESTERS OF IMPROVED COLOUR |
摘要 |
Diesters of dianhydroglycitols can be prepared by esterification of dianhydroglycitols, anhydroglycitols and/or glycitols with alkylcarboxylic o r arylcarboxylic acids in the presence of an acid catalyst, the acid catalyst being a macroporous acid ion exchange resin. If glycitols or monoanhydroglycitols are used as the starting material, the reaction temperature is initially of the order of 120 ~C and after the dehydration is approximately 140 ~C.
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申请公布号 |
CA2430090(C) |
申请公布日期 |
2009.12.22 |
申请号 |
CA20012430090 |
申请日期 |
2001.05.04 |
申请人 |
ATO B.V. |
发明人 |
VAN ES, DANIEL STEPHAN;LUITJES, HENDRIKUS;FRISSEN, AUGUSTINUS EMMANUEL |
分类号 |
C07D307/20;C07D493/04;C07B61/00;C07D307/00 |
主分类号 |
C07D307/20 |
代理机构 |
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地址 |
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