Synthesis and functionalization of 2-iodoimidazo[1,2-a]pyridines in palladium-catalysed amino-, aryloxy- and alkoxycarbonylations

Tetrahedron, Год журнала: 2025, Номер unknown, С. 134489 - 134489

Опубликована: Янв. 1, 2025

Язык: Английский

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Confinement-Driven Dimethyl Ether Carbonylation in Mordenite Zeolite as an Ultramicroscopic Reactor

Accounts of Chemical Research, Год журнала: 2024, Номер 57(19), С. 2804 - 2815

Опубликована: Авг. 27, 2024

ConspectusThe conversion of C1 molecules to methyl acetate through the carbonylation dimethyl ether in mordenite zeolite is an appealing reaction and a crucial step industrial coal-to-ethanol process. Mordenite has large 12-membered-ring (12MR) channels (7.0 × 6.5 Å

Язык: Английский

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Nickel-Catalyzed Narasaka–Heck Cyclization Carbonylation of Unsaturated Oxime Esters with Arylboronic Acids

Organic Letters, Год журнала: 2024, Номер 26(37), С. 7834 - 7840

Опубликована: Сен. 5, 2024

The Narasaka-Heck reaction is one of the most straightforward methods for constructing pyrroline derivatives. Herein, we report a novel nickel-catalyzed three-component carbonylation reaction, which cleverly realizes continuous construction C(sp

Язык: Английский

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Conjugated polyimides modified self-supported carbon electrodes for electrochemical conversion of CO₂ to CO

Energy Materials, Год журнала: 2024, Номер 4(6)

Опубликована: Июль 18, 2024

The electrochemical reduction of carbon dioxide (CO2RR) offers a promising approach to address the dual challenges energy scarcity and environmental degradation. This study presents new, cost-effective, scalable electrocatalyst: self-supporting paper modified with porous conjugated polyimides. innovative material facilitates efficient CO2 conversion in aqueous media, eliminating need for pyrolysis step. electrocatalyst’s design utilizes non-metallic organic polymer high density nitrogen atoms, serving as active sites catalysis. Its unique mesoporous microsphere structure comprises randomly stacked nanosheets that are generated situ aligned along fibers substrate. architecture enhances both adsorption ensures proper electron transportation, facilitated by polymer. Additionally, inherent hydrophobicity polyimides contributes its robust catalytic performance selectively reducing CO2, yielding CO primary gaseous product up 88.7% Faradaic efficiency 82.0 mmol g-1 h-1 yield rate. Therefore, proposed electrocatalyst provides sustainable solution CO2RR catalyzed non-metal materials, combining advantages simple preparation process absence costly materials or steps. research advancement technologies, potentially leading more environmentally friendly energy-efficient solutions.

Язык: Английский

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Asymmetric Coordination Engineering of Tin Single‐Atom Catalysts Toward CO₂ Electroreduction: the Crucial Role of Charge Capacity in Selectivity

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 6, 2025

Electrochemical reduction of CO

Язык: Английский

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Highly efficient palladium-catalyzed carbonylation reactions of terpenes.

Coordination Chemistry Reviews, Год журнала: 2025, Номер 531, С. 216453 - 216453

Опубликована: Фев. 12, 2025

Язык: Английский

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Palladium‐Catalyzed [3+2+1]/[4+2] Heteroannulation of Allylamines with CO and 1,4‐Enynes Leading to 1,7,8,8a‐Tetrahydroisoquinolin‐3(2H)‐ones

Chinese Journal of Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 25, 2025

Comprehensive Summary Aminocarbonylative heteroannulation of unsaturated hydrocarbons with amines and CO has become a key transformation in organic synthesis to build N ‐heterocycles. In this report, new palladium‐catalyzed aminocarbonylative [3+2+1]/[4+2] allylamines 4‐en‐1‐yn‐3‐yl acetates for the 1,7,8,8a‐tetrahydroisoquinolin‐3(2 H )‐ones been developed. The method enables construction two six‐membered rings single reaction step leading formation isoquinolinone scaffolds, featuring excellent selectivity, good functional group compatibility broad substrate scope. A possible mechanism involving Pd‐catalyzed isomerization form allenyl‐Pd intermediate, aminocarbonylation cycloaddition was proposed.

Язык: Английский

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Photochemical CO Release from a Bench-Stable, Recyclable Organic Platform: Applications to Carbonylative Cross-Coupling

Organic Letters, Год журнала: 2025, Номер unknown

Опубликована: Май 21, 2025

1,8-Naphthylene dithiocarbonates enable the safe and light-controlled release of carbon monoxide gas (CO). The disulfide byproducts, produced upon blue-light irradiation dithiocarbonates, were readily recovered recycled by reduction reaction with 1,1-carbonyldiimidazole (CDI). photochemical process was investigated 1H NMR, GC, FTIR, UV-vis, DFT calculations. ex situ evolution CO from this recyclable platform applied to a range Pd-catalyzed carbonylative cross-coupling reactions using two-chamber glass apparatus.

Язык: Английский

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Tailoring Pd-Co3o4 Interface Ensemble on Hcnt Support as an Efficient Catalyst for Enhancing the Acetylene Dicarbonylation Performance

Опубликована: Янв. 1, 2025

Язык: Английский

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One‐Pot Reactions in Different Sites: A New Approach in Hydroformylation‐Based Processes

ChemCatChem, Год журнала: 2024, Номер 16(16)

Опубликована: Март 26, 2024

Abstract One‐pot synthetic procedures allow multiple chemical transformations circumventing the isolation of intermediates and thus saving time, energy feedstocks. Within scope one‐pot processes, cascade, domino, or tandem are even more efficient, as reactions can occur in parallel. Hydroformylation is an industrially relevant reaction particularly suitable for this kind methodology, primary products (aldehydes) usually converted into compounds containing other functionalities. In addition to examples substrate before hydroformylation step transformation aldehyde functionalities, we highlight a novel approach, which additional functionalization takes place remote site molecule, along with carbon‐carbon double bond.

Язык: Английский

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