Synthesis in water of amphiphilic sucrose hydroxyalkyl ethers

被引:32
作者
Gagnaire, J [1 ]
Toraman, G [1 ]
Descotes, G [1 ]
Bouchu, A [1 ]
Queneau, Y [1 ]
机构
[1] CEI, Eridania Beghin Say, CNRS, UMR 143 Sucrochim, F-69609 Villeurbanne, France
关键词
surfactants; carbohydrates; etherification; epoxide;
D O I
10.1016/S0040-4039(99)00321-4
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
We describe the preparation of amphiphilic hydroxyalkylsucrose ethers from unprotected sucrose in water and we show that among the monosubstituted products, the 2- and 1'- regioisomers account for 60% of the mixture. The high reactivity of these positions is thus confirmed in water as it is in dipolar aprotic solvents. A careful analysis also show evidence of the formation of oligomerisation products as by-products. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2757 / 2760
页数:4
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