Construction of 1,2,3-Triazole-Embedded Polyheterocyclic Compounds via CuAAC and C–H Activation Strategies

Over the past two decades, the copper(I)-catalyzed azide–alkyne 1,3-dipolar cycloaddition (CuAAC), commonly known as click chemistry, and C–H bond activation have gained significant attention and have emerged as key synthetic methodologies. In our efforts to synthesize fused nitrogen-containing hete...

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Main Authors: Antonia Iazzetti, Dario Allevi, Giancarlo Fabrizi, Yuri Gazzilli, Antonella Goggiamani, Federico Marrone, Francesco Stipa, Karim Ullah, Roberta Zoppoli
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Molecules
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Online Access:https://www.mdpi.com/1420-3049/30/12/2588
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author Antonia Iazzetti
Dario Allevi
Giancarlo Fabrizi
Yuri Gazzilli
Antonella Goggiamani
Federico Marrone
Francesco Stipa
Karim Ullah
Roberta Zoppoli
author_facet Antonia Iazzetti
Dario Allevi
Giancarlo Fabrizi
Yuri Gazzilli
Antonella Goggiamani
Federico Marrone
Francesco Stipa
Karim Ullah
Roberta Zoppoli
author_sort Antonia Iazzetti
collection DOAJ
description Over the past two decades, the copper(I)-catalyzed azide–alkyne 1,3-dipolar cycloaddition (CuAAC), commonly known as click chemistry, and C–H bond activation have gained significant attention and have emerged as key synthetic methodologies. In our efforts to synthesize fused nitrogen-containing heterocycles, we developed a palladium-catalyzed protocol for the synthesis of functionalized 7,10-dihydropyrrolo[3,2,1-ij][1,2,3]triazolo[4,5-c]quinolines and 5,8-dihydrobenzo[3,4][1,2,3]triazolo[4′,5′:5,6]azepino[1,2-a]indoles from suitable bromo-substituted <i>N</i>-propargyl-indoles. The reaction conditions demonstrate broad functional group compatibility including halogen, alkoxyl, cyano, ketone, and ester, affording the target compounds in good to high yields.
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institution Kabale University
issn 1420-3049
language English
publishDate 2025-06-01
publisher MDPI AG
record_format Article
series Molecules
spelling doaj-art-39cb1ca5d2c04d8ca067e54e397a1a142025-08-20T03:27:40ZengMDPI AGMolecules1420-30492025-06-013012258810.3390/molecules30122588Construction of 1,2,3-Triazole-Embedded Polyheterocyclic Compounds via CuAAC and C–H Activation StrategiesAntonia Iazzetti0Dario Allevi1Giancarlo Fabrizi2Yuri Gazzilli3Antonella Goggiamani4Federico Marrone5Francesco Stipa6Karim Ullah7Roberta Zoppoli8Dipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Università Cattolica del Sacro Cuore, L.go Francesco Vito 1, 00168 Rome, ItalyDipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Università Cattolica del Sacro Cuore, L.go Francesco Vito 1, 00168 Rome, ItalyDipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma, P. le A. Moro 5, 00185 Rome, ItalyDipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma, P. le A. Moro 5, 00185 Rome, ItalyDipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma, P. le A. Moro 5, 00185 Rome, ItalyDipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma, P. le A. Moro 5, 00185 Rome, ItalyDipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma, P. le A. Moro 5, 00185 Rome, ItalyDipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma, P. le A. Moro 5, 00185 Rome, ItalyDipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma, P. le A. Moro 5, 00185 Rome, ItalyOver the past two decades, the copper(I)-catalyzed azide–alkyne 1,3-dipolar cycloaddition (CuAAC), commonly known as click chemistry, and C–H bond activation have gained significant attention and have emerged as key synthetic methodologies. In our efforts to synthesize fused nitrogen-containing heterocycles, we developed a palladium-catalyzed protocol for the synthesis of functionalized 7,10-dihydropyrrolo[3,2,1-ij][1,2,3]triazolo[4,5-c]quinolines and 5,8-dihydrobenzo[3,4][1,2,3]triazolo[4′,5′:5,6]azepino[1,2-a]indoles from suitable bromo-substituted <i>N</i>-propargyl-indoles. The reaction conditions demonstrate broad functional group compatibility including halogen, alkoxyl, cyano, ketone, and ester, affording the target compounds in good to high yields.https://www.mdpi.com/1420-3049/30/12/2588palladium catalysis1,2,3-triazolestriazoloquinolinestriazoloazepinoindolesCuAACC–H bond activation
spellingShingle Antonia Iazzetti
Dario Allevi
Giancarlo Fabrizi
Yuri Gazzilli
Antonella Goggiamani
Federico Marrone
Francesco Stipa
Karim Ullah
Roberta Zoppoli
Construction of 1,2,3-Triazole-Embedded Polyheterocyclic Compounds via CuAAC and C–H Activation Strategies
Molecules
palladium catalysis
1,2,3-triazoles
triazoloquinolines
triazoloazepinoindoles
CuAAC
C–H bond activation
title Construction of 1,2,3-Triazole-Embedded Polyheterocyclic Compounds via CuAAC and C–H Activation Strategies
title_full Construction of 1,2,3-Triazole-Embedded Polyheterocyclic Compounds via CuAAC and C–H Activation Strategies
title_fullStr Construction of 1,2,3-Triazole-Embedded Polyheterocyclic Compounds via CuAAC and C–H Activation Strategies
title_full_unstemmed Construction of 1,2,3-Triazole-Embedded Polyheterocyclic Compounds via CuAAC and C–H Activation Strategies
title_short Construction of 1,2,3-Triazole-Embedded Polyheterocyclic Compounds via CuAAC and C–H Activation Strategies
title_sort construction of 1 2 3 triazole embedded polyheterocyclic compounds via cuaac and c h activation strategies
topic palladium catalysis
1,2,3-triazoles
triazoloquinolines
triazoloazepinoindoles
CuAAC
C–H bond activation
url https://www.mdpi.com/1420-3049/30/12/2588
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