Phosphine and Copper-free Sonogashira coupling reaction catalyzed by lignin supported palladium nanoparticles

被引：15

作者：

Marulasiddeshwara, M. B. ^{[1
]}

Kumar, Raghavendra P. ^{[1
]}

机构：

[1] Tumkur Univ, Univ Coll Sci, Dept Chem, Tumkur 572103, Karnataka, India

来源：

MATERIALS TODAY-PROCEEDINGS | 2018年 / 5卷 / 10期

关键词：

Palladium; nanoparticles; sonogashira reaction; lignin; TERMINAL ALKYNES; IMMOBILIZED PALLADIUM; HETEROGENEOUS CATALYST; EFFICIENT CATALYSTS; AEROBIC CONDITIONS; ARYL HALIDES; SUZUKI; LIGAND; HECK; COMPLEXES;

D O I：

10.1016/j.matpr.2018.06.466

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lignin supported palladium nanoparticles (lignin@Pd-NPs) with an average size of 1-5 nm synthesized by green procedure was successfully explored in phosphine and copper-free Sonogashira C-C coupling reaction of various aryl halides with phenyl acetylene under aerobic conditions. It was found that the catalyst exhibited a high activity resulting desired products in 90-95 % yields. The catalyst was heterogeneous and was recovered by filtration and then recycled up to 3 consecutive reactions of the iodobenzene and phenyl acetylene under similar conditions resulting 93 to 88 % yields of diphenylacetylene. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：20811 / 20818

页数：8

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