Modified Montmorillonite Clay Stabilized Silver Nanoparticles: An Active Heterogeneous Catalytic System for the Synthesis of Propargylamines

被引：22

作者：

Borah, Subrat Jyoti ^{[1
]}

Das, Diganta Kumar ^{[1
]}

机构：

[1] Gauhati Univ, Dept Chem, Gauhati 781014, Assam, India

来源：

CATALYSIS LETTERS | 2016年 / 146卷 / 03期

关键词：

Silver nanoparticles; Modified montmorillonite; Propargylamine; C-H activation; 3-COMPONENT COUPLING REACTION; C-H; EFFICIENT SYNTHESIS; GOLD NANOPARTICLES; ALDEHYDE; ALKYNE; CRYSTAL; SOLVENT; AMINES; COPPER;

D O I：

10.1007/s10562-015-1679-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have synthesized size selective silver nanoparticles (Ag-NPs) in the nanopores of modified montmorillonite clay by an "in situ'' approach. The modification of montmorillonite K-10 was carried out with HCl under controlled condition for generating a high surface area and porous matrix which acted as hosts for the "in situ'' generation of silver nanoparticles. The synthesized nanocomposite material was well characterized by UV-Visible spectroscopy, powder XRD, N2 adsorption-desorption isotherm and TEM analysis. UV-Visible and TEM study revealed silver nanoparticles of 0-10 nm were evenly distributed on the support. The Ag-NPs stabilized on modified montmorillonite serves as an efficient green heterogeneous catalyst for the three component one-pot synthesis of propargylamines with 83-95 % yield and 100 % selectivity under mild reaction condition. The nanocatalyst can be recycled several times without any significant loss in its catalytic activity.

引用

页码：656 / 665

页数：10

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