Iron mediated one pot three component synthesis of 3-substituted indoles via aerobic iminium ion formation
摘要:
An efficient and economical method was developed for the synthesis of 3 substituted indoles by a highly efficient one-pot three component coupling reaction of substituted or unsubstituted benzyl alcohol, N-methyl aniline or pyrrolidine, and indoles or substituted indoles. (C) 2015 Published by Elsevier Ltd.
A general and efficient method has been developed for the synthesis of 3-aminoalkylated indoles by a three-componentcoupling of indoles, aldehydes, and amines in the presence of a catalytic amount of zwitterionic-type molten salt under solvent-free conditions. The non-hazardous experimental procedure, mild reaction conditions, and the reusability of the catalyst are the notable advantages of the present
One-Pot Synthesis of 3-[(<i>N</i>-Alkylanilino)(aryl)methyl]indoles via a Transition Metal Assisted Three-Component Condensation at Room Temperature
作者:Goutam Brahmachari、Suvankar Das
DOI:10.1002/jhet.1909
日期:2014.8
A simple and highly efficient protocol for the one-pot synthesis of a series of 3-[(N-alkylanilino)(aryl)methyl]indoles has been developed based on low-cost and environmentally benign zirconium oxychloride octahydrate and copper chloride dihydrate catalysts via three-component condensation between indoles, aromatic aldehydes, and N-alkylanilines at room temperature under neat condition. Mild reaction
Solvent‐freesynthesis of 3‐substituted indole derivatives by a one‐pot three‐component coupling reaction between aldehyde, N‐alkyl aniline and indole by Fe(HSO4)3 catalyzed is described. The noticeable features of this protocol are the simplicity of the procedure, easy synthesized, recyclable and inexpensive catalyst, no organic solvent and high yields in relatively short reaction times.
PANI-HBF<sub>4</sub>: A Reusable Polymer-Based Solid Acid Catalyst for Three-Component, One-Pot Synthesis of 3-Substituted Amino Methyl Indoles Under Solvent-Free Conditions
Abstract A simple, fast, efficient, high-yielding, and green process is developed for one-pot, three-componentsynthesis of 3-substituted amino methyl indolesundersolvent-freeconditions using polyaniline salt as polymer-based reusable solid acid catalyst at room temperature. The advantages of polyaniline salt catalyst are ease of synthesis and handling, low cost, versatality, and recyclability.
One-pot three-component coupling reaction: solvent-free synthesis of novel 3-substituted indoles catalyzed by PMA–SiO2
作者:P. Srihari、Vinay K. Singh、Dinesh C. Bhunia、J.S. Yadav
DOI:10.1016/j.tetlet.2009.02.176
日期:2009.7
Solvent-free PMA–SiO2-catalyzed synthesis of 3-substituted indole derivatives by a one-potthree-componentcouplingreaction between aldehyde, N-methyl aniline and indole is described.