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首页> 外文期刊>Catalysis science & technology >An efficient Cu-catalyzed azide-alkyne cycloaddition (CuAAC) reaction in aqueous medium with a zwitterionic ligand, betaine
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An efficient Cu-catalyzed azide-alkyne cycloaddition (CuAAC) reaction in aqueous medium with a zwitterionic ligand, betaine

机译：一个高效Cu-catalyzed azide-alkyne环加成反应在水介质(CuAAC)反应两性离子配位体,甜菜碱

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摘要

Cu-catalyzed azide-alkyne cycloaddition reaction in aqueous medium was dramatically accelerated by a simple zwitterionic additive, betaine, at ambient temperature. In the presence of betaine, 1,4-disubstituted1,2,3- triazoles were obtained from azides and terminal alkynes in excellent yields under 2.5-200 ppm levels of Cu-(I) in water. This method resulted in the remarkable reduction of the Cu-(I) concentration down to ppm levels. The advantages of this protocol include the use of a conventional Cu catalytic system with commercially available betaine, which is generally non-toxic for biological application. Therefore, this efficient catalytic system should have broad applications in life science research and materials science.
机译：Cu-catalyzed azide-alkyne环加成反应在水介质是大大加速了一个简单的两性离子添加剂,甜菜碱环境温度。1, 4-disubstituted1, 2, 3 -氮杂四唑叠氮化和终端炔烃的优秀产量在-200 - 2.5 ppm水平的铜(I)水。减少铜(I)浓度ppm的水平。传统的铜催化系统的使用与商用甜菜碱通常无毒的生物应用。因此,这个高效的催化体系广泛应用于生命科学研究吗和材料科学。

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