Results 111 to 120 of about 17,341 (257)
Chemistry – A European Journal, EarlyView.A new iminophosphorane‐based scorpionate ligand enabled the characterization of a head‐to‐head silylene dimer with unsupported Si─Si bonding, whereas the tetrylene species of Sn and Pb afforded head‐to‐tail coordination polymers in the solid state. ABSTRACT N,N‐chelating ligands disfavor element–element bonding in heavier alkene analogs of group 13 and
Huanhuan Dong +10 more
wiley +1 more source
Biodegradable Grubbs-Loaded Artificial Organelles for Endosomal Ring-Closing Metathesis. [PDF]
Biomacromolecules, 2023 Oerlemans RAJF +6 more
europepmc +1 more source
Alkali‐Metal Base Catalyzed Electrocyclization of Isoprene Derivatives
Chemistry – A European Journal, EarlyView.Simple and abundant alkali‐metal base catalysis in combination with Lewis basic polyamines enables the electrocyclization of isoprene‐derived trienes to cycloheptadienes under neat conditions. Mechanistic insight supported by DFT guides a scalable route to seven‐membered carbocycles which, after reduction, give saturated cycloalkanes relevant as ...
Mikaël Le Roch +3 more
wiley +1 more source
Synthesis of a sucrose-based macrocycle with unsymmetrical monosaccharides "arms"
Beilstein Journal of Organic Chemistry, 2018 An efficient methodology for the selective substitution of both terminal positions (C6 and C6’) in 1’,2,3,3’,4,4’-hexa-O-benzylsucrose with different unsaturated monosaccharide units is presented.
Karolina Tiara +2 more
doaj +1 more source
Synthesis of the A-F Fragment of the Pacific Ciguatoxin CTX3C by Iterative Ring-Closing Metathesis and Tsuji-Trost Allylation. [PDF]
Chemistry, 2023 Triantafyllakis M +4 more
europepmc +1 more source
European Journal of Inorganic Chemistry, EarlyView.The concept of scorpionate ligands has evolved significantly since the introduction of tris(pyrazolyl)borate. By integrating a biological supramolecular ligand scaffold with the classic scorpionate architecture, researchers have made notable strides in mimicking the active sites of nitrogenase and advancing homogeneous catalysis.
Austin Winfield Medley +1 more
wiley +1 more source
European Journal of Inorganic Chemistry, EarlyView.The preparation of soluble and stable metal M2+ dications only stabilized by weakly coordinating anions, that is, M[WCA]2 salts, is an emerging field that, beyond its fundamental interest, holds promise in reactivity due to the high electrophilicity of the central M2+ center.
Samuel Dagorne +3 more
wiley +1 more source
Z-Selective Homodimerization of Terminal Olefins with a Ruthenium Metathesis Catalyst [PDF]
, 2011 The cross-metathesis of terminal olefins using a novel ruthenium catalyst results in excellent selectivity for the Z-olefin homodimer. The reaction was found to tolerate a large number of functional groups, solvents, and temperatures while maintaining ...
Endo, Koji +3 more
core +2 more sources
Chelated Ruthenium Catalysts for Z-Selective Olefin Metathesis [PDF]
, 2011 We report the development of ruthenium-based metathesis catalysts with chelating N-heterocyclic carbene (NHC) ligands that catalyze highly Z-selective olefin metathesis.
Endo, Koji, Grubbs, Robert H.
core +3 more sources
A Crystalline Ylide‐Stabilized Stibenium Cation
European Journal of Inorganic Chemistry, EarlyView.The isolation of a stibenium cation stabilized by two thiophosphinoyl‐tethered ylide groups is reported. The cation is accessible via salt metathesis of the metalated ylide with SbCl3 and features CSb single bonds, with lone pairs remaining localized at the ylidic carbon atoms.
Daniel Knyszek +4 more
wiley +1 more source