Divergent Synthesis of Allenylsulfonamide and Enaminonesulfonamide via In(III)-Catalyzed Couplings of Propargylamine and N-Fluorobenzenesulfonimide
摘要:
An In(III)-catalyzed facile and controllable method for the synthesis of allenylsulfonamide and enaminonesulfonamide has been achieved by the reaction between propargylamine and N-fluorobenzenesulfonimide (NFSI) under mild conditions. The present protocol is also applicable to the synthesis of tetrasubstituted allenylsulfonamide from triphenyl propargylalcohol. Experimental results suggest that the reaction probably proceeds through the ionic pathway.
Nano magnetite supported metal ions as robust, efficient and recyclable catalysts for green synthesis of propargylamines and 1,4-disubstituted 1,2,3-triazoles in water
Nano magnetite functionalized 2,2′-biimidazole complex of metal ions Cu(I), Cu(II), Ni(II) and Co(II) were successfully synthesized and characterized by different techniques such as elemental analysis, FT-IR spectroscopy, X-ray diffraction (XRD), thermo gravimetric analysis (TGA), transmission electron microscopy (TEM), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM with
Cu–Ni bimetallic reusable catalyst for synthesis of propargylamines via multicomponent coupling reaction under solvent-free conditions
作者:Suyog V. Katkar、R. V. Jayaram
DOI:10.1039/c4ra06275b
日期:——
A CuâNi bimetallic catalyst has been used as a reusable catalytic system for the multicomponent coupling reaction of aldehydes, phenylacetylene and secondary amines for the synthesis of propargylamines under solvent-free conditions. The reaction did not require any other additives such as an inorganic base. The bimetallic catalyst displayed high activity and gives propargylamines in good to excellent yields. This method provides a wide range of substrate applicability. The catalyst could be magnetically separated and reused without loss in activity.
Gold immobilized onto poly(ionic liquid) functionalized magnetic nanoparticles: a robust magnetically recoverable catalyst for the synthesis of propargylamine in water
Supported gold(iii) on poly(ionic liquid) coated on magnetic nanoparticles produced a highly active, stable, recoverable and high loading for the synthesis of propargylamines (A3 coupling reaction) under green conditions.
Synthesis, characterization, and application of zinc supported on ionic liquid‐based periodic mesoporous organosilica (Zn@PMO-IL) in A3-coupling reaction for the synthesis of propargylamines
作者:Seyedeh Leila Allahgholipour、Robabeh Baharfar
DOI:10.1007/s00706-020-02628-z
日期:2020.6
including the ionicliquid pore walls that supported with zinc ions onto PMO-IL (Zn@PMO-IL). Moreover, the material was characterized using field emission‐scanning electron microscopy, transmission electron microscopy, inductively coupled plasma, and N2 adsorption–desorption. Likewise, the catalytic activity of the Zn@PMO-IL, illustrating a highly efficient nanocatalyst for the synthesis of propargylamines
A one pot three-component coupling reaction of phenylacetylene, aldehyde, and amine derivatives in the presence of Cu(II) Salen complex as an efficient heterogeneous catalyst under solvent-free conditions is reported. The catalyst displayed high activity and afforded the corresponding propargylamines in good to excellent yields. This method provides a wide range of substrate applicability. The catalyst was reused several times without significant loss of its catalytic activity. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.