Results 101 to 110 of about 21,289 (213)

Observation of the solvent enantio-isotope effect in asymmetric ring-opening of cyclic diaryliodoniums with selenocyanate. [PDF]

Chem Sci
Li Y, Tao C, Duan L, Gu Z.
europepmc   +1 more source

Ru‐Catalyzed Alkene Hydrophosphination: Correlating Substrate Scope with An Outer‐Sphere Mechanism

ChemCatChem, EarlyView.
The rate of this outer‐sphere hydrophosphination catalyzed by a Cp*Ru complexdepends on the speed of either conjugate addition A delicate balance between these two possible turnover‐limiting steps is sensitive to the structure and electronic character of both the alkene and phosphine substrates, with big impacts on activity and selectivity.
Jin Yang, Afsaneh Akar, Alexis M. Kellinghusen, Lisa Rosenberg   +3 more
wiley   +1 more source

Apparent Kinetic Isotope Effects for Multi-Step Steady-State Reactions. [PDF]

J Phys Chem B
Williams IH.
europepmc   +1 more source

Advances in Mechanochemical C─H Functionalization: A Comparative Study with Solvent‐Based Approaches

ChemCatChem, EarlyView.
This review presents the latest advancements made in mechanochemical transition metal catalyzed C─H functionalization, comparing its efficiency, sustainability and scope with traditional solvent‐based methods. By offering a side‐by‐side comparison, it equips organic chemists with the insights needed to select the most effective approach for ...
Nanditha Kattukudiyil Narayanan, Michael Schnürch   +1 more
wiley   +1 more source

Development of a Highly Active Catalyst System with Tuneable Selectivity for the Hydroformylation of the Renewable 1,3‐Diene β‐Myrcene

ChemCatChem, EarlyView.
Hydroformylation of 1,3‐dienes is widely perceived as inherently slow. In this study, a highly active catalyst system is presented that significantly accelerates the hydroformylation of β‐myrcene and challenges conventional assumptions about diene reactivity. Abstract This study presents an optimized method for the hydroformylation of β‐myrcene using a
Sebastian Obst, Katrin Köhnke, Thomas Seidensticker, Walter Leitner, Andreas J. Vorholt   +4 more
wiley   +1 more source

A Reexamination of CO2 Reduction with Fe2S2 Hydrogenase Mimics: Lessons in Using a Hydrogen Evolution Reaction Catalyst for CO2 to Formate Catalysis

ChemElectroChem, EarlyView.
Combining cyclic voltammetry, infrared spectroelectrochemistry, and density functional theory methods, the reduction of CO2 by an [FeFe] hydrogenase mimic was examined. Despite its ability to form stable reduced hydride species, this catalyst does not selectively reduce CO2 to HCOO− under the tested conditions.
Christopher J. Miller, Byunghoon Lee, Jacob A. Barrett, Joseph M. Palasz, Thomas Chan, Anoushka Shandilya, Clifford P. Kubiak   +6 more
wiley   +1 more source

Oxygen Isotope Fractionation of O₂ Consumption through Abiotic Photochemical Singlet Oxygen Formation Pathways. [PDF]

ACS Environ Au
Pati SG, Brunner LM, Ley M, Hofstetter TB.   +3 more
europepmc   +1 more source

Electrooxidation of Anhydrous Glycerol: Kinetics and Selectivity

ChemElectroChem, EarlyView.
This work investigates glycerol electrooxidation in anhydrous conditions to narrow down the range of possible products. Preferential oxidation of glycerol to glyceraldehyde was achieved via homogeneous but not heterogeneous catalytic pathways. Further improvements in the redox mediator and catalyst design are needed to improve the performance.As a by ...
Laela Ezra, Alasdair I. McKay, Matthias Driess, Rebecca Y. Hodgetts, Alexandr N. Simonov   +4 more
wiley   +1 more source

Isotopic source signatures of stratospheric CO inferred from in situ vertical profiles. [PDF]

NPJ Clim Atmos Sci
Hooghiem JJD, Gromov S, Kivi R, Popa ME, Röckmann T, Chen H.   +5 more
europepmc   +1 more source

Ni‐Based Catalysts for 5‐Hydroxymethylfurfural Electrooxidation Coupled with Hydrogen Production

ChemElectroChem, EarlyView.
The co‐electrolysis of H2O and 5‐hydroxymethylfurfural (HMF) using Ni‐based catalysts, under alkaline conditions, co‐produces low‐carbon hydrogen and furandicarboxylic acid. This review delves into the electrooxidation mechanism of HMF electrooxidation, presents recent advancements in the performance of Ni‐based catalysts and highlights the effects of ...
Itzcóatl Rafael Garduño‐Ibarra, Zhigang Yan, Sayed Ahmed Ebrahim, Elena Baranova, Jesús González‐Cobos, Mathieu Prévot, Philippe Vernoux   +6 more
wiley   +1 more source