Abstract
Attempts to generate a scandium metallocene oxide using N2O have revealed that N2O undergoes facile insertion into metal−carbon bonds of allyl metallocene complexes to form (RN2O)− ligands where R = C3H5. This has been demonstrated in reactions with the tetramethylcyclopentadienyl allyl complexes (C5Me4H)2M(η3-C3H5) (M = Sc, Y) and the pentamethylcyclopentadienyl allyl compounds (C5Me5)2M(η3-C3H5) (M = Y, Sm, La), which generate the insertion products [(C5Me4H)2M(μ-η1:η2-ON═NC3H5)]2 (M = Sc, 1; Y, 2) and [(C5Me5)2M(μ-η1:η2-ON═NC3H5)]2 (M = Y, 3; Sm, 4; La, 5), respectively.
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