Three component reaction of indoles, benzaldehydes, and N-alkylanilines in the presence of 2,4,6-trichloro-1,3,5-triazine (TCT) afforded the corresponding 3-[(N-alkylanilino)(aryl)methyl]indoles at room temperature in high yields (87-95%) within 1 to 2.5 hours.
Bromodimethylsulfonium bromide (BDMS)-catalyzed multicomponent synthesis of 3-aminoalkylated indoles
作者:Deepak K. Yadav、Rajesh Patel、Vishnu P. Srivastava、Geeta Watal、Lal Dhar S. Yadav
DOI:10.1016/j.tetlet.2010.08.065
日期:2010.10
Bromodimethylsulfonium bromide (BDMS)-catalyzed three-component coupling reaction between indoles, aldehydes, and N-alkylanilines is reported to access substituted 3-aminoalkylated indoles at room temperature in high yields (82-96%) within 1.5-3.5 h. The salient features of this protocol are the simplicity of the procedure, the ready accessibility of the catalyst, its cost effectiveness, and higher yields in relatively short reaction times. (C) 2010 Elsevier Ltd. All rights reserved.
Zwitterionic-Type Molten Salt: A Mild and Efficient Organocatalyst for the Synthesis of 3-Aminoalkylated Indoles via Three-Component Coupling Reaction
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