A NEW SYNTHESIS OF D-GLYCOSIDURONATES FROM UNPROTECTED D-URONIC ACIDS

被引:37
作者
BERTHO, JN [1 ]
FERRIERES, V [1 ]
PLUSQUELLEC, D [1 ]
机构
[1] ECOLE NATL SUPER CHIM RENNES,CNRS,SYNTHESES & ACTIVAT BIOMOLEC LAB,F-35700 RENNES,FRANCE
关键词
D O I
10.1039/c39950001391
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
O-Glycosidation of totally O-unprotected D-galacturonic acid 1 in THF provides alpha-pyranosides 4a when promoted with BF3.OEt(2) whereas beta-furanosides 6 beta were obtained in the presence of FeCl3; when the same reaction is performed with D-glucuronic acid 2 or ''D-glucurone'' 3, alkyl-D-glucofuranosidurono-6,3-lactones 7 are synthesized in excellent yields and high beta-selectivity.
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页码:1391 / 1393
页数:3
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