dc.contributor.author |
LET, SUMANTA |
en_US |
dc.contributor.author |
DAM, GOURAB K |
en_US |
dc.contributor.author |
SAMANTA, PARTHA |
en_US |
dc.contributor.author |
FAJAL, SAHEL |
en_US |
dc.contributor.author |
DUTTA, SUBHAJIT |
en_US |
dc.contributor.author |
GHOSH, SUJIT K. |
en_US |
dc.date.accessioned |
2023-04-21T09:28:52Z |
|
dc.date.available |
2023-04-21T09:28:52Z |
|
dc.date.issued |
2022-12 |
en_US |
dc.identifier.citation |
Journal of Organic Chemistry, 87(24), 16655–16664. |
en_US |
dc.identifier.issn |
0022-3263 |
en_US |
dc.identifier.issn |
1520-6904 |
en_US |
dc.identifier.uri |
https://doi.org/10.1021/acs.joc.2c02325 |
en_US |
dc.identifier.uri |
http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/7728 |
|
dc.description.abstract |
Aggregation-induced catalyst deactivation during the reaction in supported metal catalysts prevails as one of the pitfalls toward their practical implementation. Herein, a homogeneously dispersed palladium-coordinated N-heterocyclic carbene (NHC) was strategically integrated inside a microporous hyper-cross-linked polymer via post-synthesis structural modulation. Successful immobilization of spatially isolated Pd (II) units onto the polymer scaffold yielded highly robust heterogeneous catalysts 120-MI@Pd NHC and 120-EI@Pd NHC, respectively. 120-EI@NHC Pd (4.41 wt % Pd) illustrated a remarkable catalytic potency (yield up to >99%) toward the eco-friendly Suzuki–Miyaura coupling (SMC) reaction at room temperature. The superior catalytic efficiency of 120-EI@Pd NHC is further highlighted from its excellent functionality tolerance over 42 substrates bearing electronic diversity and a turnover frequency value reaching up to 4.97 × 103 h–1 at a very low catalyst dosage of 0.04 mol %. Pertaining to heterogenization, the polymer catalyst could be easily reused with intact catalytic efficiency for at least 10 cycles. The catalytic competence of 120-EI@NHC Pd in terms of scope, scalability, and sustainability advocates its proficiency, while processability was achieved by crafting 3D aerogel monoliths. The conceptual feasibility was further investigated by devising a cup-based nano-reactor with gram-scale product isolation over three catalytic cycles. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
American Chemical Society |
en_US |
dc.subject |
Aerogels |
en_US |
dc.subject |
Catalysts |
en_US |
dc.subject |
Heterogeneous catalysts |
en_US |
dc.subject |
Palladium |
en_US |
dc.subject |
Polymers |
en_US |
dc.subject |
2022 |
en_US |
dc.title |
Palladium-Anchored N-Heterocyclic Carbenes in a Porous Organic Polymer: A Heterogeneous Composite Catalyst for Eco-Friendly C–C Coupling |
en_US |
dc.type |
Article |
en_US |
dc.contributor.department |
Dept. of Chemistry |
en_US |
dc.identifier.sourcetitle |
Journal of Organic Chemistry |
en_US |
dc.publication.originofpublisher |
Foreign |
en_US |