Synthesis of Free NH 2-(Aminomethyl)indoles through Copper-Catalyzed Reaction of 3-(ortho-Trifluoroacetamidophenyl)-1-propargylic Alcohols with Amines and Palladium/Copper- Cocatalyzed Domino Three-Component Sonogashira Cross-Coupling/Cyclization/Substitu
作者:Sandro Cacchi、Giancarlo Fabrizi、Antonia Iazzetti、Carmela Molinaro、Rosanna Verdiglione、Antonella Goggiamani
DOI:10.1002/adsc.201400881
日期:2015.3.23
Free NH 2‐(aminomethyl)indoles have been prepared via copper‐catalyzed cyclization of 3‐(ortho‐trifluoroacetamidophenyl)‐1‐propargylic alcohols in the presence of primary or secondary amines. The synthesis has been developed into a simple and very efficient domino three‐component Sonogashira cross‐coupling/cyclization/substitution process that, omitting the isolation of 3‐(ortho‐trifluoroacetamido
在伯胺或仲胺的存在下,通过3-(邻-三氟乙酰氨基苯基)-1-丙炔醇的铜催化环化反应制得了游离的NH 2-(氨基甲基)吲哚。该合成方法已发展成为一种简单而高效的多米诺骨牌三组分Sonogashira交叉偶联/环化/取代过程,该方法省去了3-(邻-三氟乙酰胺基苯基)-1-丙醇的分离,提供了此类化合物的获取途径通过使用铜/钯催化剂体系处理2-碘三氟乙酰苯胺,炔丙醇和伯胺或仲胺。