Efficient and General Synthesis of 3-Aminoindolines and 3-Aminoindoles via Copper-Catalyzed Three-Component Coupling Reaction
作者:Dmitri Chernyak、Natalia Chernyak、Vladimir Gevorgyan
DOI:10.1002/adsc.201000015
日期:——
An efficient three‐component coupling (TCC) reaction toward a variety of 3‐aminoindoline and 3‐aminoindole derivatives has been developed. This cascade transformation proceeds via the copper‐catalyzed coupling reaction between 2‐aminobenzaldehyde, a secondary amine, and an alkyne leading to a propargylamine intermediate which, under the reaction conditions, undergoes cyclization into the indoline core
开发了一种针对多种 3-氨基吲哚啉和 3-氨基吲哚衍生物的有效三组分偶联 (TCC) 反应。这种级联转化通过2-氨基苯甲醛、仲胺和炔烃之间的铜催化偶联反应进行,产生炔丙胺中间体,在反应条件下,该中间体环化为二氢吲哚核心。后者在用碱处理后,顺利地异构化为吲哚。或者,可以在一锅顺序反应中直接合成吲哚。