ZrO2-supported Cu(ii)-[small beta]-cyclodextrin complex: construction of 2,4,5-trisubstituted-1,2,3-triazoles via azide-chalcone oxidative cycloaddition and post-triazole alkylation

Girish, Y. R. and Sharath Kumar, K. S. and Muddegowda, Umashankar and Lokanath, N. K. and Rangappa, K. S. and Shashikanth, Sheena (2014) ZrO2-supported Cu(ii)-[small beta]-cyclodextrin complex: construction of 2,4,5-trisubstituted-1,2,3-triazoles via azide-chalcone oxidative cycloaddition and post-triazole alkylation. RSC Advances, 4 (99). pp. 55800-55806.

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Official URL: http://dx.doi.org/10.1039/C4RA09970B

Abstract

An efficient one-pot three-component stepwise approach for the synthesis of N-2-substituted-1,2,3-triazoles from chalcones, sodium azide and esters has been developed using a recoverable and reusable ZrO2 nanoparticle-supported Cu(ii)-[small beta]-cyclodextrin complex as a catalyst. N-2 alkylation of triazoles using different aryl-alkyl esters without any additives has been achieved for the first time. The one-pot operation, atom-economical nature, regioselectivity and good yields are the noteworthy features of this protocol. The reusability of the prepared nanocatalyst was successfully examined four times without any appreciable loss in catalytic activity.

Item Type: Article
Additional Information: Unmapped bibliographic data: M3 - 10.1039/C4RA09970B [Field not mapped to EPrints] JO - RSC Adv. [Field not mapped to EPrints]
Subjects: Physical Sciences > Chemistry
Divisions: PG Campuses > Manasagangotri, Mysore > Chemistry
Depositing User: Ms. Manjula p
Date Deposited: 13 May 2016 07:21
Last Modified: 30 Jun 2016 11:33
URI: http://eprints.uni-mysore.ac.in/id/eprint/18721

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