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Hydrovinylation and Related Reactions: New Protocols and Control Elements in Search of Greater Synthetic Efficiency and Selectivity
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1999
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EngineeringOrganic ChemistryChemistryChemical EngineeringNew Reaction ConditionsMacromolecular EngineeringSustainable SynthesisHomogeneous CatalysisStereoselective SynthesisGreater Synthetic EfficiencyDiversity-oriented SynthesisCatalysisEnantioselective SynthesisCatalytic SynthesisStereochemical Control ElementsControl ElementsNatural SciencesIntramolecular CyclizationSynthetic ChemistryRelated Reactions
New reaction conditions and stereochemical control elements for heterodimerization between ethylene (or propylene) and functionalized vinyl arenes are highlighted (see equation). For example, an enantioselective version of the hydrovinylation reaction uses [{(allyl)NiBr}2], a noncoordinating counter anion, (bis-CF3−C6H3)4B−, and a hemilabile ligand such as MOP. Other applications include intramolecular cyclization of 1,6-dienes and heterodimerization of norbornene and ethylene.