Consecutive three-component synthesis of (hetero)arylated propargyl amides by chemoenzymatic aminolysis–Sonogashira coupling sequence
作者:Sidra Hassan、Anja Ullrich、Thomas J. J. Müller
DOI:10.1039/c4ob02386b
日期:——
A novel chemoenzymatic three-component synthesis of (hetero)arylated propargyl amides in good yields based upon Novozyme® 435 (Candida antarctica lipase B (CAL-B)) catalyzed aminolysis of methyl carboxylates followed by Sonogashira coupling with (hetero)aryliodides in a consecutive one-pot fashion has been presented. This efficient methodology can be readily concatenated with a CuAAC (Cu catalyzed
基于435(南极念珠菌脂肪酶B(CAL-B))催化的羧甲基丙烯酸酯的氨水解反应,然后Sonogashira与(杂)芳基碘化物偶合,以高收率的新型(化学)三组分合成(杂)芳基丙炔酰胺一锅时尚已经提出。这种有效的方法可以很容易地与CuAAC(Cu催化的炔烃叠氮化物环加成反应)连接,作为连续的第三步,以提供1,4-二取代的1,2,3-三唑连接的芳基炔丙基酰胺。这一一锅法可以看作是过渡金属催化的序列,它利用了交叉偶联步骤中仍然存在的铜源。