Transition metal-free one-pot cascade synthesis of 7-oxa-2-azatricyclo[7.4.0.02,6]trideca-1(9),10,12-trien-3-ones from biomass-derived levulinic acid under mild conditions
Copper-catalyzed tandem reaction in ionic liquid: an efficient reusable catalyst and solvent media for the synthesis of fused poly hetero cyclic compounds
作者:Shivaji Naidu、Sabbasani Rajasekhara Reddy
DOI:10.1039/c6ra13712a
日期:——
Herein we report a copper catalyzed tandemreaction for the synthesis of therapeutically important pyrrolo-/pyrido[2,1-b] benzo[d][1,3]oxazin-1-ones from 2-aminobezyl alcohols using alkynoic acids under ligand and base free conditions in the presence of a green solvent medium [bmim]OTf. The catalyst and solvent were successfully recycled and reused.
在这里,我们报告铜催化串联反应,用于在配体和配体下使用炔酸从2-氨基苄醇合成具有治疗意义的吡咯并//吡啶并[ 2,1- b ]苯并[ d ] [1,3]恶嗪-1-酮。在绿色溶剂介质[bmim] OTf存在下的无碱条件。催化剂和溶剂已成功回收利用。