Cooperative Multifunctional Organocatalysts for Ambient Conversion of Carbon Dioxide into Cyclic Carbonates
作者:Ning Liu、Ya-Fei Xie、Chuan Wang、Shi-Jun Li、Donghui Wei、Min Li、Bin Dai
DOI:10.1021/acscatal.8b01925
日期:2018.11.2
N-heterocyclic carbene precursor and a carboxyl group as proton transfer agent were synthesized and used as organocatalysts for the cycloaddition of epoxides with CO2. In this context, we have demonstrated the high activity of these one-component organocatalysts in the CO2 transformation to cyclic carbonates under ambient conditions (room temperature, 1 bar of CO2). The catalytic potential of these multifunctional
合成了一系列具有N杂环卡宾前体和羧基作为质子转移剂的钳型化合物,并将其用作有机催化剂,用于环氧化物与CO 2的环加成反应。在这种情况下,我们已经证明了这些单组分有机催化剂在环境条件(室温,1 bar CO 2)下从CO 2转化为环状碳酸酯的高活性。这些多功能有机催化剂在具有挑战性的内部环氧化物上的催化潜力特别值得一提,因为能够介导内部环氧化物与CO 2的环加成反应的有机催化剂在温和的条件下仍然稀缺。通过控制实验和DFT计算阐明了分子内的协同激活机制。