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| 1 | A simple hydroxypyridine ionic liquids for conversion of CO_(2)into quinazoline-2,4(1H,3H)-diones under atmospheric conditions显示文摘The transformation of CO_(2)into high value-added product is a promising pathway for utilizing CO_(2).However,the process tends to require harsh reaction conditions owing to CO_(2)chemical inertness.Designing a high efficiency catalytic system with environmentally benign characteristic are important determinants.In this work,protic ionic liquids[TMG][2-OPy]were prepared via one-step neutralization between 1,1,3,3-tetramethylguanidine and 2-hydroxypyridine,applying to the domain of synthesizing quinzoline-2,4(1 H,3H)-diones from CO_(2)and 2-aminobenzontiles without any solvent or metal,achieving the yield of 97%at 90℃for 8 h under atmospheric.A series of substrates with good to acceptable yield were detected,revealing the generality and universality of the catalyst.Furthermore,the system could be facilely reused for at least six runs,retaining the yield of 94%.A preliminary kinetic equation is calculated with the activation energy of 68 kJ·mol^(-1),and a plausible reaction mechanism was put forward.This study highlights that the[TMG][2-OPy]enables to activate CO_(2)carboxylation efficiently. | Bowen Jiang Meiling Weng Jigang An Yuewei Fan Jia Liu Ying Liu Ting Yu Leizhi zheng Guoqiang Yang Zhibing Zhang | 2023 | Chinese Journal of Chemical Engineering2023，62，10： | 0 |
| 2 | 功能化离子液体催化CO_(2)转化合成高附加值化学品综述显示文摘CO_(2)既是造成温室效应的主要气体,也是储量丰富、价廉、低毒且有望成为人类替代石油和天然气作为未来“碳源”的重要资源,CO_(2)的高效、清洁资源化利用已显示出重要的科技与经济价值。鉴于CO_(2)自身的热力学稳定性和动力学惰性,催化剂的设计与开发成为温和条件下CO_(2)高效率、高选择性转化的关键。离子液体作为一类新型的软介质和功能材料,在催化CO_(2)转化领域展现出广阔的应用前景。本工作综述了近五年离子液体在催化CO_(2)转化合成各种高附加值化学品中的应用,阐明了不同阴阳离子结构对CO_(2)活化及转化性能的影响,分析了离子液体介质中CO_(2)与不同底物的反应机理,为新型离子液体在CO_(2)捕集与转化中的应用与发展提供了重要指导。 | 刘福胜 程鑫 何亮 瓮士为 刘猛帅 | 2023 | 青岛科技大学学报(自然科学版)2023，44，1： | 0 |
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