Results 231 to 240 of about 24,787 (265)

Did organic compounds in the Tagish Lake meteorite form via catalytic processes in the solar nebula and within parent bodies? [PDF]

, 2003
Gilmour, I., Hill, H. G. M., Nuth, J. A., Pearson, V. K.   +3 more
core  

Solvent‐Driven Mechanistic Insights into Cu‐Catalyzed Asymmetric C─H Amidation via Nitrene Transfer

ChemCatChem, EarlyView.
The impact of solvent and ligand in asymmetric Cu‐catalyzed nitrene transfer into a benzylic C─H bond was investigated to provide insights to improve reaction design. Medium‐throughput experimentation, NMR, and CV studies suggest that the anti‐chelate effect on bis(oxazoline) ligands bound to Cu, as well as product inhibition, play key roles in ...
Jed H. Kim, Ethan M. Warrington, Ken S. Lee, Derek B. Hu, John F. Berry, Jennifer M. Schomaker   +5 more
wiley   +1 more source

Diverse Cyclization Pathways Between Nitriles with Active α-Methylene Group and Ambiphilic 2-Pyridylselenyl Reagents Enabled by Reversible Covalent Bonding. [PDF]

Int J Mol Sci
Artemjev AA, Sapronov AA, Kubasov AS, Peregudov AS, Novikov AS, Egorov AR, Khrustalev VN, Borisov AV, Matsulevich ZV, Shikhaliyev NG, Nenajdenko VG, Gomila RM, Frontera A, Kritchenkov AS, Tskhovrebov AG.   +14 more
europepmc   +1 more source

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

Fe-Catalyzed Fluoroalkyl(hetero)arylation of Vinyl Azaarenes: Rapid and Modular Synthesis of Unsymmetrical 1,1-Bis(hetero)arylalkanes. [PDF]

Org Lett
Guerrero M, Rentería-Gómez Á, Das D, Gutierrez O.   +3 more
europepmc   +1 more source

Nitrile oxide / Isoxazoline route to novel C-Glycosides and C-Disaccharides [PDF]

, 1996
Ferguson, William James
core  

Organo‐, Metal‐, and Enzyme‐Mediated Stereoselective Transformations of α‐Angelica Lactone

ChemCatChem, EarlyView.
α‐Angelica lactone is a readily available small molecule from biomass source, which, coupled with cheapness and versatile reactivity, attracted significant interest for applications in asymmetric synthesis. In this minireview, stereoselective organo‐, metal‐, and enzymatic‐based approaches for the construction of new butenolide‐containing heterocycles,
Amina Moutayakine, Sara Meninno, Alessandra Lattanzi   +2 more
wiley   +1 more source

Lattice oxygen insertion mechanism in CeO₂-catalyzed reactions in water: nitrile hydration reaction. [PDF]

Chem Sci
Endo T, Ikeda T, Muraoka K, Kita Y, Tamura M, Nakayama A.   +5 more
europepmc   +1 more source

[CuI(PPh3)3]‐Mediated Arylation of 1,2,3‐Triazoles

ChemCatChem, EarlyView.
Arylation reactions are a powerful strategy to selectively prepare highly substituted heterocyles. Herein, the arylation of 1,4‐disubstituted 1,2,3‐triazoles with [CuI(PPh3)3] is reported in the presence of air and moisture. Suitable substrates include triazoles containing a pyridyl group, which are of interest in applications such as ancillary ligands
Steven Lal, Jialei Qian, Raul Pacheco‐Muino, Vera Kleene, Matthew J. Foulkes, Silvia Díez‐González   +5 more
wiley   +1 more source

Synthetic applications of nitrile oxide / isoxazoline chemistry [PDF]

, 1992
Boyd, Ewan Campbell
core