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
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.
Three-component coupling (3CC) of indoles, aldehydes, and N-alkylanilines has been accomplished using a catalytic amount of cellulose–sulfonic acid under mild reaction conditions to furnish the 3-a...
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.