Results 61 to 70 of about 42,319 (209)

Catalysis in Chemical Modification of Proteins

ChemCatChem, EarlyView.
Catalytic principles of synthetic organic chemistry have been increasingly applied to chemical modification of proteins during the recent years. This review article describes how seven types of catalytic systems —electrocatalysis, photocatalysis, metal catalysis, acid catalysis, organocatalysis, supramolecular catalysis, and heterogeneous catalysis ...
Seiya Ishizawa, Koki Fujimura, Kounosuke Oisaki, Shinichi Sato, Jun Ohata   +4 more
wiley   +1 more source

Transfer Hydrogenation to Bicarbonate Salts and CO2 Catalyzed by IrCp*‐Oxyquinolinate Complexes

ChemCatChem, EarlyView.
[IrClCp*(QO)] complexes are efficient catalysts for the transfer hydrogenation of CO₂ and bicarbonate salts under mild conditions. This process enables formate production without hazardous H₂ gas, highlighting the role of ligand design in catalytic performance.
Kevin Gutiérrez, Alejandro Torres, José Aleman, Alba Collado   +3 more
wiley   +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

Structural, Spectroscopic, and Electrochemical Properties of Nonheme Fe(II)-Hydroquinonate Complexes: Synthetic Models of Hydroquinone Dioxygenases [PDF]

, 2012
Using the tris(3,5-diphenylpyrazol-1-yl)borate (Ph2Tp) supporting ligand, a series of mono- and dinuclear ferrous complexes containing hydroquinonate (HQate) ligands have been prepared and structurally characterized with X-ray crystallography.
Baum, Amanda E., Fiedler, Adam T., Lindeman, Sergey, Park, Heaweon, Wang, Denan   +4 more
core   +2 more sources

Fused Nitrogen Bridgehead N,O‐Acetals as Versatile Scaffolds: Synthetic Strategies, Mechanism and Applications

Chemistry – A European Journal, EarlyView.
Fused nitrogen‐bridgehead N,O‐acetals receive specific emphasis as pivotal scaffolds due to their significant role in the bioactivity of medicinally relevant molecules. Significant approaches have been reported on their role as key synthetic building blocks/motifs in the construction of complex organic molecules and their utility as chiral auxiliaries ...
Alexis D. Kouvelas, Michael G. Kallitsakis, Ioannis N. Lykakis   +2 more
wiley   +1 more source

A Sydnonimine-based Click-and-Release Approach to Cyclic Products. [PDF]

Chemistry
Macrocyclick‐and‐release: The combination of a chemoselective Cu‐catalyzed click‐and‐release reaction and pyrene tags allows efficient synthesis of macrocycles and easy isolation by simple filtration through graphitic material. Abstract Herein, we report a general, efficient, and practical methodology for the macrocyclization of compounds based on the ...
Force G, Feng M, Audisio D, Thuéry P, Schulz E, Taran F.   +5 more
europepmc   +2 more sources

Design, synthesis, docking studies and monoamine oxidase inhibition of a small library of 1-acetyl- and 1-thiocarbamoyl-3,5-diphenyl-4,5-dihydro-(1h)-pyrazoles [PDF]

, 2019
New N-acetyl/N-thiocarbamoylpyrazoline derivatives were designed and synthesized in high yields to assess their inhibitory activity and selectivity against human monoamine oxidase A and B.
Carradori, Simone, Chimenti, Paola, Cirilli, Roberto, Guglielmi, Paolo, Petzer, Anél, Petzer, Jacobus P., Poli, Giulio, Rotondi, Giulia, Secci, Daniela   +8 more
core   +1 more source

Advances in Mechanochemical Methods for One‐Pot Multistep Organic Synthesis

Chemistry – A European Journal, EarlyView.
This review highlights recent advances in mechanochemical methods for multistep organic synthesis, focusing on sequential one‐pot approaches performed by grinding or ball milling. The presented transformations are discussed in terms of efficiency, applicability, and sustainability, assessing both the challenges and potential of solvent‐free one‐pot ...
Nina Biedermann, Michael Schnürch
wiley   +1 more source

Synthesis and Structures of Co Bis-Trifluoromethylpyrazolate Complexes [PDF]

, 2013
Reactions of Co(PMe3)(3)Cl or CoCl2 with 3,5-(CF3)(2)-PzNa in hexane give Co(PMe3)(3)(3,5-(CF3)(2)-Pz) (1) and Co(PMe3)(3)(3,5-(CF3)(2)-Pz)(2) (2) respectively (3,5-(CF3)(2)-PzNa = sodium bis-trifluoromethylpyrazolate).
Jones, Richard A., Rivers, Joseph H.
core   +1 more source

Dinuclear Copper Complex with a Pyridazine‐Bridged Octadentate Ligand: Monooxygenase Activity and Characterization of Copper‐Oxygen Intermediates

Chemistry – A European Journal, EarlyView.
Access to various copper‐oxygen intermediates: Depending on the reaction conditions, different copper‐oxygen intermediates can be obtained with our new dinuclear complex. Whereas low‐temperature oxygenation leads to a μ‐1,1 hydroperoxo complex, oxygenation at room temperature generates a “green species” that looks like a mono μ‐oxo complex but rather ...
Alexander Stüber, Ramona Jurgeleit, Benjamin Grimm‐Lebsanft, Sören Buchenau, Ina Kellner, Yannik Appiarius, Christian Näther, Jan Krahmer, Ivana Ivanović‐Burmazović, Michael Rübhausen, Maria A. Naumova, Felix Tuczek   +11 more
wiley   +1 more source