15431-85-3Relevant articles and documents
Olefin metathesis featuring ruthenium indenylidene complexes with a sterically demanding NHC ligand
Urbina-Blanco, Cesar A.,Leitgeb, Anita,Slugovc, Christian,Bantreil, Xavier,Clavier, Herve,Slawin, Alexandra M. Z.,Nolan, Steven P.
, p. 5045 - 5053 (2011)
The synthesis and characterization of two new ruthenium indenylidene complexes [RuCl2(SIPr)(Py)(Ind)] 6 and [RuCl2(SIPr)(3- BrPy)(Ind)] 7 featuring the sterically demanding N-heterocyclic carbene 1,3-bis(2,6-di isopropylphenyl)-4,5-d
Ring-closing metathesis at room temperature within nanometer micelles using water as the only solvent
Lipshutz, Bruce H.,Ghorai, Subir,Aguinaldo, Grant T.
, p. 953 - 956 (2008)
Simply mixing a water-insoluble diolefinic substrate and Grubbs second generation catalyst in pure water containing small amounts of the amphiphile polyoxyethanyl α-tocopheryl sebacate (PTS) leads to efficient ring-closing metathesis.
Activated pyridinium-tagged ruthenium complexes as efficient catalysts for ring-closing metathesis
Rix, Diane,Clavier, Hervé,Coutard, Yann,Gulajski, Lukasz,Grela, Karol,Mauduit, Marc
, p. 5397 - 5405 (2006)
New pyridinium-tagged ruthenium catalysts have been synthesised to perform olefin metathesis in several media including both organic and aqueous solvents and room temperature ionic liquids (RTILs). High activity was obtained in the ring-closing metathesis (RCM) of a variety of di- or tri-substituted and/or oxygen-containing dienes. However, only fair levels of recycling combined with low to moderate residual ruthenium levels (25-173 ppm) have been observed showing clearly the difficulty of associating high activity and recyclability.
Ring-Closing Olefin Metathesis Catalyzed by Well-Defined Vanadium Alkylidene Complexes
Belov, Dmitry S.,Tejeda, Gabriela,Tsay, Charlene,Bukhryakov, Konstantin V.
, p. 4578 - 4582 (2021/02/11)
Vanadium-based catalysts have shown activity and selectivity in ring-opening metathesis polymerization of strained cyclic olefins comparable to those of Ru, Mo, and W catalysts. However, the application of V alkylidenes in routine organic synthesis is limited. Here, we present the first example of ring-closing olefin metathesis catalyzed by well-defined V chloride alkylidene phosphine complexes. The developed catalysts exhibit tolerance to various functional groups, such as an ether, an ester, a tertiary amide, a tertiary amine, and a sulfonamide. The size and electron-donating properties of the imido group and the phosphine play a crucial role in the stability of active intermediates. Reactions with ethylene and olefins suggest that both β-hydride elimination of the metallacyclobutene and bimolecular decomposition are responsible for catalyst degradation.
Nitrogen-coordination-containing ruthenium carbene catalyst and preparation method and application thereof
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Paragraph 0100; 0101; 0112, (2018/11/22)
The present invention discloses a nitrogen-coordination-containing ruthenium carbene catalyst and a preparation method and application thereof. The nitrogen-coordination-containing ruthenium carbene catalyst is characterized by being shown in a formula (I