Protic acid (HClO4 supported on silica gel)-mediated synthesis of 2,3-unsaturated-O-glucosides and a chiral furan diol from 2,3-glycals

被引:140
作者
Agarwal, A [1 ]
Rani, S [1 ]
Vankar, YD [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India
关键词
D O I
10.1021/jo049415j
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Perchloric acid supported on silica gel acts as an excellent reagent system in converting glucals into 2,3-unsaturated-O-glucosides in good to excellent yields in short reaction time with good a selectivity. Primary, secondary, and allylic alcohols, phenols, and thiols react with 3,4,6-tri-O-acetyl glucal with equal ease. In addition to this, a chiral furan diol is obtained from unprotected D-glucal or D-galactal in good yields.
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页码:6137 / 6140
页数:4
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