New Chromium Carbonyl Catalysts for [6+2] Cycloaddition Reactions

Abstract

The complexes, (benzene)chromiumdicarbonyl(methyl acrylate) and chromiumdicarbonylbis(cyclohexadiene), are precursors for the highly coordinatively unsaturated chromium dicarbonyl fragment 3, a catalyst for the cycloaddition of activated olefins to cycloheptatriene.

Key words

(arene)Cr(CO)₃ Complexes - higher order cycloaddition - acrylate - diene chromium complex

References

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2

Neither ‘Cr(CO)₃’ nor ‘Cr(CO)₂’ are likely to exist as unsaturated entities but are stabilized by three, respectively four electron pair donor ligands (e.g. Lewis basic solvents, alkenes).