Issue 9, 2011
From the journal:

Green Chemistry

Immobilized palladium nanoparticles on a silica–starch substrate (PNP–SSS): as an efficient heterogeneous catalyst for Heck and copper-free Sonogashira reactions in water

Ali Khalafi-Nezhad*a  and  Farhad Panahi*a  

* Corresponding authors

a Department of Chemistry, College of Sciences, Shiraz University, Shiraz, Iran
E-mail: khalafi@chem.susc.ac.ir, panahi@shirazu.ac.ir
Fax: +98-711-2280926
Tel: +98-711-2282380

Abstract

This paper reports an efficient heterogeneous catalyst system based on the immobilization of Pd nanoparticles on a silica–starch substrate (PNP–SSS). The PNP–SSS is found as a highly effective recyclable catalyst in Heck and copper-free Sonogashira reactions. The silica–starch substrate (SSS) can stabilize the Pd nanoparticles effectively so that it can provide a platform and prevent the aggregation of nanoparticles and their separation from the substrate surface. It also provides suitable catalytic sites for reactions in aqueous media. The Heck and copper-free Sonogashira reactions are performed in the presence of a small amount of this catalyst in water as a green solvent. The catalyst can be reused more than six times with almost consistent efficiency and can be recovered by simple filtration.

Graphical abstract: Immobilized palladium nanoparticles on a silica–starch substrate (PNP–SSS): as an efficient heterogeneous catalyst for Heck and copper-free Sonogashira reactions in water

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/C1GC15360A
Article type
Paper
Submitted
04 Apr 2011
Accepted
15 Jun 2011
First published
12 Jul 2011

Green Chem., 2011,13, 2408-2415

Permissions

Request permissions

Immobilized palladium nanoparticles on a silica–starch substrate (PNP–SSS): as an efficient heterogeneous catalyst for Heck and copper-free Sonogashira reactions in water

A. Khalafi-Nezhad and F. Panahi, Green Chem., 2011, 13, 2408 DOI: 10.1039/C1GC15360A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements