Magnetite nanoparticles coated with ruthenium via SePh layer as a magnetically retrievable catalyst for the selective synthesis of primary amides in an aqueous medium | Health & Environmental Research Online (HERO)

Health & Environmental Research Online (HERO)

Print Feedback Export to File

This record has one attached file:

Citation
Tags

HERO ID

2660180

Reference Type

Journal Article

Title

Magnetite nanoparticles coated with ruthenium via SePh layer as a magnetically retrievable catalyst for the selective synthesis of primary amides in an aqueous medium

Author(s)

Joshi, H; Sharma, KN; Sharma, AK; Prakash, Om; Kumar, A; Singh, AK

Year

2014

Is Peer Reviewed?

Yes

Journal

Dalton Transactions
ISSN: 1477-9226
EISSN: 1477-9234

Volume

Issue

Page Numbers

12365-12372

Language

English

PMID

24989230

DOI

10.1039/c4dt01189a

Web of Science Id

WOS:000339862000029

Abstract

The nanostructured magnetic oxide Fe3O4 has been coated with silica and then reacted with phenylselenyl chloride under a N-2 atmosphere and RuCl3 center dot xH(2)O successively in an aqueous medium to prepare Fe3O4@SiO2@SePh@Ru(OH)(x) nanoparticles (NPs) for the first time. These magnetically retrievable NPs have been authenticated using TEM, SEM-EDX and powder-XRD and found to be an efficient catalyst for one pot conversion (organic solvent not required) of aldehydes, nitrites and benzyt amine to primary amides in water. For aldehydes and nitrites, the yields of primary amides are up to 93%. These NPs can be recycled more than 7 times for the conversion of benzonitrite to the corresponding amide. Gram-scale transformation carried out by using Fe3O4@SiO2@SePh@Ru(OH)(x) NPs as a catalyst gives similar to 86% yield.