6533b833fe1ef96bd129c052

RESEARCH PRODUCT

Synthesis and structure of stable cis-dimethyl complex of oxotungsten(VI)

Reijo SillanpääAri Lehtonen

subject

ChemistryOrganic ChemistryMetathesisBiochemistryMedicinal chemistryMagnesium iodideInorganic Chemistrychemistry.chemical_compoundTransmetalationPolymerizationMaterials ChemistryOrganic chemistryPhysical and Theoretical ChemistryCis–trans isomerismNorbornene

description

Abstract Oxotungsten(VI) complex cis -[WO(L t Bu )Me 2 ] (L t Bu  = methylamino- N , N -bis(2-methylene-4-methyl-6- tert -butylphenolate) dianion) was prepared by the transmetallation reaction of [WO(L t Bu )Cl 2 ] (either cis or trans isomer) with methyl magnesium iodide. This unexpectedly stable dialkyl complex can be activated by Et 2 AlCl to catalyze the ring-opening metathesis polymerization of norbornene.

https://doi.org/10.1016/j.jorganchem.2007.02.018