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Synthesis and characterization of CdS and Mn doped CdS nanoparticles and their catalytic application for chemoselective synthesis of benzimidazoles and benzothiazoles in aqueous medium

Paper ID Volume ID Publish Year Pages File Format Full-Text
51237 46836 2012 5 PDF Available
Title
Synthesis and characterization of CdS and Mn doped CdS nanoparticles and their catalytic application for chemoselective synthesis of benzimidazoles and benzothiazoles in aqueous medium
Abstract

CdS and Manganese doped CdS nanoparticles of ~ 2 nm have been prepared at room temperature by a wet chemical technique. The heterogeneous catalysts were fully characterized by XRD, TEM, EDAX, ICP-AES and UV/VIS. These nanoparticles were exploited to study their catalytic activities towards the chemoselective aqueous mediated synthesis of 2-aryl benzimidazoles and benzothiazoles. Doping of Mn promotes the activity and selectivity of CdS nanoparticles indicated by high TOF value, providing the products in good to excellent yields, and with good chemoselectivity. The catalyst could also be recovered easily and used repetitively four times without significantly affecting the catalytic activity.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► We prepared CdS and Mn doped CdS NPs through the wet chemical method (particle size ~ 2 nm). ► Doping of Mn promotes the activity and selectivity of CdS nanoparticles. ► Chemoselective synthesis of benzimidazoles and benzothiazoles in aqueous medium. ► High catalytic activity in terms of TOF by Mn doping could be attributed to the increase of surface acidity. ► Recyclability of the catalyst, low catalyst loading, broad substrate applicability.

Keywords
Aqueous medium; CdS and Mn doped CdS nanoparticles; Heterogeneous catalyst
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Synthesis and characterization of CdS and Mn doped CdS nanoparticles and their catalytic application for chemoselective synthesis of benzimidazoles and benzothiazoles in aqueous medium
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 28, 5 November 2012, Pages 90–94
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us