Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazoles

A simple and efficient synthesis of 2H-indazoles is achieved from 2-primary amines, bromobenzaldehydes and sodium azide through domino condensation, C–N and N–N bond formations, catalyzed by a heterogeneous Cu(II)-Clay catalyst. The recyclable heterogeneous Cu(II)-Clay catalyst exhibited a remarkabl...

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Main Authors: Bashir Ahmad Dar, Syed Wasim Safvi, Masood Ahmad Rizvi
Format: Article
Language:English
Published: Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS) 2018-04-01
Series:Bulletin of Chemical Reaction Engineering & Catalysis
Subjects:
Online Access:https://journal.bcrec.id/index.php/bcrec/article/view/963
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author Bashir Ahmad Dar
Syed Wasim Safvi
Masood Ahmad Rizvi
author_facet Bashir Ahmad Dar
Syed Wasim Safvi
Masood Ahmad Rizvi
author_sort Bashir Ahmad Dar
collection DOAJ
description A simple and efficient synthesis of 2H-indazoles is achieved from 2-primary amines, bromobenzaldehydes and sodium azide through domino condensation, C–N and N–N bond formations, catalyzed by a heterogeneous Cu(II)-Clay catalyst. The recyclable heterogeneous Cu(II)-Clay catalyst exhibited a remarkable activity for the title reaction without any additives. An assortment of structurally diverse 2H-indazoles were prepared in good to excellent yields from easily available starting materials by using this protocol. The Cu(II)-Clay catalyst was characterized by using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Brunauer-Emmett-Teller (BET) techniques.
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spelling doaj.art-06a69d05b0e3413b86584b469e108f602023-09-22T03:45:14ZengMasyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)Bulletin of Chemical Reaction Engineering & Catalysis1978-29932018-04-01131828810.9767/bcrec.13.1.963.82-88900Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazolesBashir Ahmad Dar0Syed Wasim Safvi1Masood Ahmad Rizvi2Department of Chemistry, Govt., Degree College Boys, Sopore Jammu & Kashmir, 193201, IndiaDepartment of Chemistry, University of Kashmir, Hazratbal, Srinagar, J&K, IndiaDepartment of Chemistry, University of Kashmir, Hazratbal, Srinagar, J&K, IndiaA simple and efficient synthesis of 2H-indazoles is achieved from 2-primary amines, bromobenzaldehydes and sodium azide through domino condensation, C–N and N–N bond formations, catalyzed by a heterogeneous Cu(II)-Clay catalyst. The recyclable heterogeneous Cu(II)-Clay catalyst exhibited a remarkable activity for the title reaction without any additives. An assortment of structurally diverse 2H-indazoles were prepared in good to excellent yields from easily available starting materials by using this protocol. The Cu(II)-Clay catalyst was characterized by using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Brunauer-Emmett-Teller (BET) techniques.https://journal.bcrec.id/index.php/bcrec/article/view/9632h-indazolescopper catalystmulticomponent reactiongreen synthesisneat protocol
spellingShingle Bashir Ahmad Dar
Syed Wasim Safvi
Masood Ahmad Rizvi
Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazoles
Bulletin of Chemical Reaction Engineering & Catalysis
2h-indazoles
copper catalyst
multicomponent reaction
green synthesis
neat protocol
title Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazoles
title_full Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazoles
title_fullStr Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazoles
title_full_unstemmed Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazoles
title_short Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazoles
title_sort microwave assisted expeditious and green cu ii clay catalyzed domino one pot three component synthesis of 2h indazoles
topic 2h-indazoles
copper catalyst
multicomponent reaction
green synthesis
neat protocol
url https://journal.bcrec.id/index.php/bcrec/article/view/963
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AT masoodahmadrizvi microwaveassistedexpeditiousandgreencuiiclaycatalyzeddominoonepotthreecomponentsynthesisof2hindazoles