铜(I)催化由邻卤代酚和2-氯乙酰胺一锅合成2 H -1,4-Benzoxazin -3-(4 H)-ones
摘要:
我们开发了一种高效便捷的方法,可通过2-氯乙酰胺的亲核取代反应从2-卤代苯酚制备N-取代的2 H -1,4-苯并恶嗪-3-(4 H)-酮,然后进行CuI催化的偶联环化反应。可以有效地使用各种各样的底物,以高产率提供所需的产物。由于该方法涉及简单的反应条件,较短的反应时间和较宽的底物范围,因此对于有效制备生物学上和医学上感兴趣的分子特别有吸引力。
Cross-electrophilecoupling reactions of different electrophiles have been extensively studied but mainly limited to bromides and iodides. Here, we report an electrochemically induced nickel-catalyzedcross-electrophilecoupling strategy between alkenyltriflates and α-chloroamides in an undivided cell under mild reaction conditions, affording the α-functionalized amide derivatives in good to excellent