Publications associées à Tandem Pauson-Khand Reaction Using Carbon Dioxide as the C1-Source

Publications associées (19)

Highly Active Photoreduction of Atmospheric-Concentration CO2 into CH3COOH over Palladium Particles on Nb2O5 Nanosheets

The endeavor to drive CO2 photoreduction towards the synthesis of C2 products is largely thwarted by the colossal energy hurdle inherent in C−C coupling. Herein, we load active metal particles on metal oxide nanosheets to build the dual metal pair sites fo ...

Wiley-VCH Verlag GmbH2025

Designing multi-metal-site nanosheet catalysts for CO2 photoreduction to ethylene

Michael Graetzel, Jing Gao, Jiaqi Xu

Catalysts featuring multiple active sites hold significant potential for CO2 photoconversion to multi-carbon products. However, multi-metal-site catalysts typically face challenges with low yields and selectivity for ethylene production, with a lack of def ...

2025

Tunable Thiazolium Carbenes for Enantioselective Radical Three-Component Dicarbofunctionalizations

Nicolai Cramer, Sripati Jana

Asymmetric N-heterocyclic carbene (NHC) organocatalysis is a cornerstone of synthetic organic chemistry. The emerging concept of single-electron NHC catalysis broadened the scope of C-C bond-forming reactions, facilitating the synthesis of a variety of att ...

AMER CHEMICAL SOC2024

Climate neutrality of the French energy system: overview and impacts of sustainable aviation fuel production

François Maréchal

(Formula presented.) emission reduction of sectors such as aviation, maritime shipping, road haulage, and chemical production is challenging but necessary. Although these sectors will most likely continue to rely on carbonaceous energy carriers, they are e ...

2024

An evolved artificial radical cyclase enables the construction of bicyclic terpenoid scaffolds via an H-atom transfer pathway

Bruno Emanuel Ferreira De Sousa Correia

While natural terpenoid cyclases generate complex terpenoid structures via cationic mechanisms, alternative radical cyclization pathways are underexplored. The metal-catalysed H-atom transfer reaction (M-HAT) offers an attractive means for hydrofunctionali ...

2024

Spatio-temporal patterns and drivers of CH4 and CO2 fluxes from rivers and lakes in highly urbanized areas

Alexandre Buttler

Gaseous carbon exchange at the water-air interface of rivers and lakes is an essential process for regional and global carbon cycle assessments. Many studies have shown that rivers surrounding urban landscapes can be hotspots for greenhouse gas (GHG) emiss ...

Elsevier2024

The nature of carbon deposits and their formation pathways during catalytic supercritical water gasification of glycerol

Christopher Marc Hunston

Supercritical water gasification (SCWG) is a promising technology to convert wet biomass to renewable natural gas. The present study sheds light on the chemical composition and the formation mechanism of coke deposits on a Ru/CNF catalyst during continuous ...

ACADEMIC PRESS INC ELSEVIER SCIENCE2023

Preparation, Quantification, and Reaction of Pd Hydrides on Pd/ Al2O3 in Liquid Environment

Oliver Kröcher, Thibault Xavier Florian Fovanna

The ability to study in situ the formation and consumption of Pd hydrides (PdH) in liquid environments is a significant challenge hampering a deeper understanding of catalyzed liquid-phase hydrogenation reactions. Here, using quick scanning X-ray absorptio ...

AMER CHEMICAL SOC2023

Organic Chemistry and Synthesis Rely More and More upon Catalysts

Pierre Vogel

A few months before the COVID-19 pandemic, Pierre Vogel and Kendall N. Houk published with a new textbook Wiley-VCH, "Organic Chemistry: Theory, Reactivity, and Mechanisms in Modern Synthesis", with a foreword from the late Roberts H. Grubbs. The book demo ...

MDPI2022

Oxygen Evolution at the BiVO4-Water Interface: Mechanism of the Water Dehydrogenation Reaction

Alfredo Pasquarello, Julia Anna Wiktor, Sai Lyu

We study the water dehydrogenation reaction at the BiVO4(010)-water interface by combining nudged-elastic-band calculations and electronic structure calculations at the hybrid functional level. We investigate the pathway and the kinetic barrier for the adi ...

AMER CHEMICAL SOC2022

Enhanced Solar-to-Fuel Efficiency of Ceria-Based Thermochemical Cycles via Integrated Electrochemical Oxygen Pumping

Sophia Haussener, Meng Lin, Clemens Gregor Suter

The solar thermochemical cycle based on ceria is a promising route for renewable fuel production. The solar-to-fuel efficiency of a thermochemical reactor is highly dependent on the oxygen removal during the reduction step. Conventional nitrogen sweeping ( ...

AMER CHEMICAL SOC2022

Structure and Reactivity of N-Heterocyclic Alkynyl Hypervalent Iodine Reagents

Rosario Scopelliti, Jérôme Waser, Farzaneh Fadaei Tirani, Matthew Wodrich, Eliott Hugo Joran Le Du

Ethynylbenziodoxol(on)e (EBX) cyclic hypervalent iodine reagents have become popular reagents for the alkynylation of radicals and nucleophiles, but only offer limited possibilities for further structure and reactivity fine-tuning. Herein, the synthesis of ...

2021

New Vinylation and Alkynylation Strategies with Hypervalent Iodine Reagents and Diazo Compounds

Guillaume Dominique Pisella

The development of a sequential copper-catalyzed oxy-alkynylation/intramolecular [4+2] cycloaddition of allenes and arenes was investigated at first. This one-pot protocol allowed the construction of complex polycylic architectures with high efficiency fro ...

EPFL2021

Novel Interfacial Characterization and Surface Engineering in Semiconductor Electrodes for Optimized Solar Fuel Production

Yongpeng Liu

Harvesting sunlight, the ultimate renewable power source, in a cost-effective way has been long recognized as a necessary route to meet the global energy challenges. Solar energy can be transformed into electricity by means of photovoltaic devices to suppl ...

EPFL2021

Cycloaddition of Biogas-Contained CO2 into Epoxides via Ionic Polymer Catalysis: An Experimental and Process Simulation Study

Alexy Robert Bonnin, Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, François Maréchal, Felix Daniel Bobbink, Antoine Philippe Van Muyden, Masoud Talebi Amiri

Biogas upgrading technologies are crucial for the production of high-purity biomethane. Efficient CO2 removal methods that are currently commercialized rely on "catch-and-release" mechanisms, and the CO2 stream is usually discharged into the atmosphere wit ...

AMER CHEMICAL SOC2021

Enantioselective (CpRhIII)-Rh-x-Catalyzed Carboaminations of Acrylates

Nicolai Cramer, Coralie Danielle Annick Duchemin

Enantioselective carboaminations of olefins constitute an attractive strategy for a rapid increase in molecular complexity from readily available starting materials. Reported here is an intermolecular asymmetric carboamination of acrylates using rhodium(II ...

Wiley-VCH Verlag GmbH2020

Photoluminescent, upconversion luminescent and nonlinear optical metal-organic frameworks: From fundamental photophysics to potential applications

Kyriakos Stylianou, Ngoc Tú Nguyên, Fatmah Ebrahim

Metal-organic frameworks (MOFs) are a class of porous materials prepared by the self-assembly of metal ions or clusters with organic ligands. The unique characteristics of MOFs, including structural tunability, high surface areas, low densities and tailore ...

2018

Carbon Dioxide Based N-Formylation of Amines Catalyzed by Fluoride and Hydroxide Anions

Paul Joseph Dyson, Felix Daniel Bobbink, Shoubhik Das, Martin Hulla

We described herein a simple approach for N-formylation with CO2 and hydrosilane reducing agents. Fluoride and hydroxide salts efficiently catalyzed the reaction, principally through activation of the hydrosilanes, which led to hydrosilane reactivities com ...

Wiley-VCH Verlag2016

Recent developments of iron pincer complexes for catalytic applications

Xile Hu, Gerald Bauer

Iron catalysis is attractive for organic synthesis because iron is inexpensive, abundant, and non-toxic. To control the activity and stability of an iron center, a large number of iron pincer complexes have been synthesized. Many such complexes exhibit exc ...

Chinese Chemical Soc2016