作者:Stephen R. D. George、Gavin L. Edwards、Jason B. Harper
DOI:10.1039/c0ob00306a
日期:——
The effect of a series of ionic liquids on the regioselectivity of the azide-alkyne cycloaddition process was investigated, demonstrating an increased selectivity for the least hindered triazole. The effects of an ionic liquid on the activation parameters for the process were determined and found to be intermediate between coordinating and non-coordinating salts. The importance of knowing the water content of the system is demonstrated by marked changes in the activation parameters in the presence of small concentrations of water.
研究了一系列离子液体对叠氮-炔环化反应过程的区域选择性的影响,结果表明受阻最小的三唑的选择性增加。测定了离子液体对该过程活化参数的影响,发现其介于配位盐和非配位盐之间。在存在小浓度水的情况下,活化参数会发生明显变化,这表明了解体系中水含量的重要性。