Ionic Liquid-Promoted Three-Component Domino Reaction of Propargyl Alcohols, Carbon Dioxide and 2-Aminoethanols: A Thermodynamically Favorable Synthesis of 2-Oxazolidinones
作者:Shumei Xia、Yu Song、Xuedong Li、Hongru Li、Liang-Nian He
DOI:10.3390/molecules23113033
日期:——
realize incorporation CO₂ under atmospheric pressure, a protic ionic liquid-facilitated three-component reaction of propargyl alcohols, CO₂ and 2-aminoethanols was developed to produce 2-oxazolidinones along with equal amount of α-hydroxyl ketones. The ionic liquid structure, reaction temperature and reaction time were in detail investigated. And 15 mol% 1,5,7-triazabicylo[4.4.0]dec-5-ene ([TBDH][TFE]) trifluoroethanol
为了克服由2-氨基乙醇和CO 2起始的恶唑烷酮合成的热力学限制并实现在大气压力下引入CO 2,开发了一种质子离子液体促进的炔丙醇,CO 2和2-氨基乙醇的三组分反应以生产2-恶唑烷酮与等量的α-羟基酮。详细研究了离子液体的结构,反应温度和反应时间。发现15 mol%1,5,7-三氮杂双[4.4.0]癸-5-烯([TBDH] [TFE])三氟乙醇能够协同活化底物和CO 2,从而在大气压下催化这种级联反应CO 2压力。通过使用这种特定任务的离子液体作为可持续催化剂,