Three-Component Bicyclization Providing an Expedient Access to Pyrano[2′,3′:5,6]pyrano[2,3-<i>b</i>]pyridines and Its Derivatives
作者:Xing-Jun Tu、Wei Fan、Wen-Juan Hao、Bo Jiang、Shu-Jiang Tu
DOI:10.1021/co500100c
日期:2014.11.10
A new three-component bicyclization for the efficient synthesis of a fused pyrano[2,3-b]pyridine library has been developed. The syntheses were achieved by reacting diverse C,O-containing nucleophiles, aldehydes, and 2-aminoprop-1-ene-1,1,3-tricarbonitrile under microwave irradiation, providing 50 examples of chemically and biomedically significant pyrano[2,3-b]pyridine analogues with the concomitant
为有效合成稠合的吡喃并[2,3-b]吡啶文库,开发了一种新的三组分双环化方法。通过在微波辐射下使各种含C,O的亲核试剂,醛和2-氨基丙-1-烯-1,1,3-三腈反应得到合成,提供了50个化学和生物医学上很重要的吡喃[2,3-]实例。 b]吡啶类似物,同时形成两个新环和四个sigma键。该程序的特点是反应时间短,成本低廉且易于获得的起始原料,可靠的可扩展性和温和的反应条件以及操作简便。