Efficient Synthesis of Functionalized 2,5-Dihydropyrrole Derivatives by Ph3P-Promoted Condensation between Acetylene Esters and α-Arylamino Ketones
作者:Mohammad Anary-Abbasinejad、Ehsanorreza Poorhassan、Alireza Hassanabadi
DOI:10.1055/s-0029-1217516
日期:2009.7
A new and efficient one-pot synthesis of polysubstituted 2,5-dihydropyrrole derivatives by reaction between dialkyl acetylenedicarboxylates and β-aminoketones promoted by triphenylphosphine, is described. The prepared 2,5-dihydropyrroles can be easily oxidized to the corresponding pyrrole derivatives by chromium trioxide.
描述了通过二烷基乙炔二羧酸酯与三苯基膦促进的 β-氨基酮反应合成多取代 2,5-二氢吡咯衍生物的新型高效一锅法。制备的 2,5-二氢吡咯很容易被三氧化铬氧化成相应的吡咯衍生物。