Synthesis and catalytic reactivity of Bis (alkylzinc)-hydride-di (2-pyridylmethyl) amides

…, H Görls, L González, M Westerhausen

Index: Kahnes, Marcel; Goerls, Helmar; Gonzalez, Leticia; Westerhausen, Matthias Organometallics, 2010 , vol. 29, # 14 p. 3098 - 3108

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Citation Number: 22

Abstract

Although extensively exploited, the true nature of the in situ formed catalyst still remains unclear. Dialkylzinc (alkyl = Me, Et) forms a stable adduct L with N,N′-ethylenebis(1-phenylethylamine ) and metalates N,N′-ethylenebis(benzylamine) to give the dimeric amide M (see Scheme 2).(18, 19) When operating in aprotic solvents, the precurser complexes L and M are believed to convert into a monomeric nitrogen donor-stabilized alkyl zinc hydride species.