Sonocatalysis of the TEMPO-mediated oxidation of glucosides

被引:30
作者
Brochette-Lemoine, S [1 ]
Joannard, D [1 ]
Descotes, G [1 ]
Bouchu, A [1 ]
Queneau, Y [1 ]
机构
[1] CNRS, UMR 143, Unite Mixte Sucrochim, F-69603 Villeurbanne, France
关键词
oxidation; nitroxide; carbohydrate; sonochemistry;
D O I
10.1016/S1381-1169(99)00197-1
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ultrasound is shown to increase the rate of the TEMPO-mediated oxidation of methyl alpha-D-glucopyranoside or sucrose in the presence of stoichiometric amounts of sodium hypochlorite in basic aqueous medium. The reaction can then occur without the usually necessary sodium bromide, showing that ultrasound acts at the level of the formation of the nitrosonium ion, the active oxidizing species in the catalytic cycle. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:31 / 36
页数:6
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