Intramolecular alkoxycobaltation: a novel route to the cobalt–carbon bond in a coenzyme B12 model

Abstract

Co^II(salen) derivatives whose ethanediyl moiety carries an ω-alkenyl side chain react with oxygen and methanol or ethanol to give, via interaction between intermediate Co^III species and the pendant olefin, alkylated products with a β-alkoxy substituted carbon bridge between cobalt and the equatorial ligand; the corresponding intermolecular reaction between Co^II(salen) and hex-1-ene does not take place.