Abstract:Enyne metathesis reactions involving metallacyclobutene intermediates have been comprehensively studied and utilized in numerous synthetic processes and catalytic transformations. We describe here our initial results toward the utilization of metalla-aromatic in classical [2 + 2] cycloaddition that η 3 -allyl structures are formed stoichiometrically through hydrogen-bonding-induced [2 + 2] cycloaddition between several propynol and a ruthenabenzene complex. The effect of the intramolecular hydrogen bonding int… Show more
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