Journal of the Chemical Society Chemical Communications · 1974 · 25 citations · 0 references
Prototropic Hydrogen ShiftCross-coupling ReactionEngineeringAlkene MetathesisNatural SciencesDiversity-oriented Synthesis4-Methylpent-4-en-2-ynyl Prop-2-ynyl EthersOrganic Chemistry3-Phenylprop-2-ynyl Allyl EthersIntramolecular CycloadditionsCatalysisXa → IxaChemistryOrganometallic CatalysisIb → ViiiEnantioselective SynthesisBiomolecular Engineering
The base catalysed isomerisations (Ia → IIIa + VI), (Ib → VIII), (Xa → IXa), (Xb → IXb), (Va → XI + XIIa), and (Vb → IXc + XIIb) involve the sequence: acetylene → allene isomerisation, intramolecular (π4+π2) cycloaddition, and sigmatropic or prototropic hydrogen shift.