Radical-Induced Cascade Annulation/Hydrocarbonylation for Construction of 2-Aryl-4H-chromen-4-ones
作者:Xinwei He、Keke Xu、Yanan Liu、Demao Wang、Qiang Tang、Wenjie Hui、Haoyu Chen、Yongjia Shang
DOI:10.3390/molecules27217412
日期:——
cleavage/intramolecular 6-endo-dig annulation/hydrocarbonylation for the synthesis of the valuable 2-aryl-4H-chromen-4-ones is described. This practical synthesis strategy utilizes propargylamines and air as the oxygen source and green carbonylation reagent, in which propargylamines are activated by the inexpensive and available dimethyl 2,2′-azobis(2-methylpropionate) (AIBME) and (PhSe)2 as the radical initiators
描述了一种强大的无金属和无溶剂级联自由基诱导的 CN 裂解/分子内 6-内环化/烃基化,用于合成有价值的 2-芳基-4 H-苯并吡喃-4-酮。这种实用的合成策略利用炔丙胺和空气作为氧源和绿色羰基化试剂,其中炔丙胺被廉价且可用的二甲基2,2'-偶氮二(2-甲基丙酸酯)(AIBME)和(PhSe) 2作为自由基活化发起者。这种简单且绿色的方案具有广泛的底物适应性、良好的官能团耐受性以及易于放大和衍生化的特点。