Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/103821
DC Field | Value | Language |
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dc.contributor.author | Librando, Ivy L. | - |
dc.contributor.author | Mahmoud, Abdallah G. | - |
dc.contributor.author | Carabineiro, Sónia A. C. | - |
dc.contributor.author | Guedes da Silva, M. Fátima C. | - |
dc.contributor.author | Geraldes, Carlos F. G. C. | - |
dc.contributor.author | Pombeiro, Armando J. L. | - |
dc.date.accessioned | 2022-11-30T09:32:14Z | - |
dc.date.available | 2022-11-30T09:32:14Z | - |
dc.date.issued | 2021 | - |
dc.identifier.issn | 2073-4344 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/103821 | - |
dc.description.abstract | A set of Cu(I) complexes with 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo-[3.3.1]nonane (DAPTA) phosphine ligands viz. [CuX( P-DAPTA)3] (1: X = Br; 2: X = I) and [Cu( -X)( P-DAPTA)2]2 (3: X = Br; 4: X = I) were immobilized on activated carbon (AC) and multi-walled carbon nanotubes (CNT), as well as on these materials after surface functionalization. The immobilized copper(I) complexes have shown favorable catalytic activity for the one-pot, microwave-assisted synthesis of 1,2,3-triazoles via the azide-alkyne cycloaddition reaction (CuAAC). The heterogenized systems with a copper loading of only 1.5–1.6% (w/w relative to carbon), established quantitative conversions after 15 min, at 80 C, using 0.5 mol% of catalyst loading (relative to benzyl bromide). The most efficient supports concerning heterogenization were CNT treated with nitric acid and NaOH, and involving complexes 2 and 4 (in the same order, 2_CNT-ox-Na and 4_CNT-ox-Na). The immobilized catalysts can be recovered and recycled by simple workup and reused up to four consecutive cycles although with loss of activity. | pt |
dc.language.iso | eng | pt |
dc.publisher | MDPI | pt |
dc.relation | UIDB/00100/2020 | pt |
dc.relation | FCT - Scientific Employment Stimulus-Institutional Call (CEECINST/ 00102/2018) | pt |
dc.relation | UIDB/50006/2020 | pt |
dc.relation | UIDP/50006/2020 | pt |
dc.relation | CATSUS Ph.D. Program - grant (PD/BD 135555/2018) | pt |
dc.relation | post-doctoral fellowship through the project CO2usE-1801P.00867.1.01 (Contract No. IST-ID/263/2019) | pt |
dc.relation | RUDN University Strategic Academic Leadership Program | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | Cu(I) complexes | pt |
dc.subject | phosphine | pt |
dc.subject | DAPTA ligands | pt |
dc.subject | carbon nanotubes | pt |
dc.subject | click chemistry | pt |
dc.subject | CuAAC | pt |
dc.subject | triazoles | pt |
dc.subject | microwave | pt |
dc.title | The Catalytic Activity of Carbon-Supported Cu(I)-Phosphine Complexes for the Microwave-Assisted Synthesis of 1,2,3-Triazoles | pt |
dc.type | article | - |
degois.publication.firstPage | 185 | pt |
degois.publication.issue | 2 | pt |
degois.publication.title | Catalysts | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.3390/catal11020185 | pt |
degois.publication.volume | 11 | pt |
dc.date.embargo | 2021-01-01 | * |
uc.date.periodoEmbargo | 0 | pt |
item.fulltext | Com Texto completo | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.languageiso639-1 | en | - |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
crisitem.project.grantno | Centro de Química Estrutural | - |
crisitem.project.grantno | Associated Laboratory for Green Chemistry - Clean Technologies and Processes- REQUIMTE | - |
crisitem.project.grantno | Associated Laboratory for Green Chemistry - Clean Technologies and Processes | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.orcid | 0000-0002-0837-8329 | - |
Appears in Collections: | FCTUC Química - Artigos em Revistas Internacionais FCTUC Ciências da Vida - Artigos em Revistas Internacionais |
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The-catalytic-activity-of-carbonsupported-CuIphosphine-complexes-for-the-microwaveassisted-synthesis-of-123triazolesCatalysts.pdf | 3.58 MB | Adobe PDF | View/Open |
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