Ruthenium-Based Heterocyclic Carbene-Coordinated Olefin Metathesis Catalysts [PDF]
Chemical Reviews, 2010 The fascinating story of olefin (or alkene) metathesis (eq 1) began almost five decades ago, when Anderson and Merckling reported the first carbon-carbon double-bond rearrangement reaction in the titanium-catalyzed polymerization of norbornene.
Grubbs, Robert H. +1 more
core +3 more sources
Synthesis of Conjugated Linear and Cyclic Polyynes by Selective Alkyne Metathesis. [PDF]
Angew Chem Int Ed EnglThe formation of polyynes with an odd number of conjugated triple bonds is challenging, particularly for complex architectures since most established methods rely on irreversible C–C bond‐forming reactions. To address this, we have developed the synthesis of triynes via alkyne metathesis.
Escudero J +12 more
europepmc +3 more sources
A Convenient, Safe, and Atom-Economical Route to a Large Portfolio of Grubbs-Type Catalysts for Olefin Metathesis via Four-Coordinate Ruthenium Alkylidynes. [PDF]
Angew Chem Int Ed EnglIt may seem counterintuitive to first target a ruthenium alkylidyne when Grubbs‐type ruthenium carbene complexes are the actual goal. In the end, however, this tactic pays valuable dividends in terms of practicality, atom economy, flexibility as well as safety: the new route provides ready access to a large assortment of catalysts for alkene metathesis
Cui M, Fürstner A.
europepmc +3 more sources
Synthesis and Characterization of Super Bulky β-Diketiminato Group 1 Metal Complexes
Inorganics, 2021 Sterically bulky β-diketiminate (or Nacnac) ligand systems have recently shown the ability to kinetically stabilize highly reactive low-oxidation state main group complexes.
Dafydd D. L. Jones +2 more
doaj +1 more source
Well-defined silica-supported olefin metathesis catalysts [PDF]
, 2009 Two triethoxysilyl-functionalized N-heterocyclic carbene ligands have been synthesized and used to prepare the corresponding second-generation ruthenium olefin metathesis catalysts.
Allen, Daryl P. +2 more
core +1 more source
Hexaethylguanidinium tetrakis(trimethylsilylethynyl)borate diethyl ether monosolvate
IUCrData, 2017 The solvated molecular salt, C13H30N3+·C20H36BSi4−·C4H10O, was obtained by the reaction of trimethylsilylethyne with boron trichloride in the presence of tert-butyllithium, followed by ion metathesis.
Stefan Oberparleiter +5 more
doaj +1 more source
Pseudohalogen Chemistry in Ionic Liquids with Non‐innocent Cations and Anions
ChemistryOpen, 2021 Within the second funding period of the SPP 1708 “Material Synthesis near Room Temperature”,which started in 2017, we were able to synthesize novel anionic species utilizing Ionic Liquids (ILs) both, as reaction media and reactant.
Dr. Sören Arlt +9 more
doaj +1 more source
Inorganics, 2023 A new synthetic pathway to various mono-alkyl-substituted phosphinoboranes HRP–BH2–NMe3 has been developed. The new synthetic route starting from alkyl halides and NaPH2 followed by metalation and salt metathesis is performed in a one-pot procedure and ...
Felix Lehnfeld +3 more
doaj +1 more source
Facile Synthesis of Effcient and Selective Ruthenium Olefin Metathesis Catalysts with Sulfonate and Phosphate Ligands [PDF]
, 2010 A series of novel, air-stable ruthenium NHC catalysts with sulfonate and phosphate anions have been prepared easily in one pot at high yields using commercially available precursors.
Grubbs, Robert H., Teo, Peili
core +1 more source
Molecules, 2021 A series of poly(pyridinium salt)s-fluorene main-chain ionic polymers with various organic counterions were synthesized by using ring-transmutation polymerization and metathesis reactions. Their chemical structures were characterized by Fourier Transform
Pradip K. Bhowmik +8 more
doaj +1 more source