Domino synthesis of functionalized pyridine carboxylates under gallium catalysis: Unravelling the reaction pathway and the role of the nitrogen source counter anion
作者:Dinesh Kumar、Himanshu Sharma、Nirjhar Saha、Asit K. Chakraborti
DOI:10.1002/asia.202200304
日期:2022.8
domino Michael-cyclodehydration-aromatization multicomponent reaction for the synthesis of functionalized pyridines from enaminones, 1,3-diketones, and NH4OAc undersolvent-freecondition is reported. The method is simple, high-yielding, and operates under mild conditions with a wide substrate scope. The use of different ammonium salts as a nitrogen source was investigated and the decisive role of the acetate
报道了在无溶剂条件下由烯胺酮、1,3-二酮和 NH 4 OAc 合成官能化吡啶的 GaI 3催化多米诺迈克尔环脱水芳构化多组分反应。该方法简单、收率高、操作条件温和、底物范围广。研究了使用不同的铵盐作为氮源,并确定了醋酸盐抗衡阴离子的决定性作用。