189372-36-9Relevant articles and documents
Terminal chalcogenido complexes of zirconium: Syntheses and reactivity of Cp2*Zr(E)(NC5H5) (E = O, S, Se, Te)
Howard, William A.,Trnka, Tina M.,Waters, Marcey,Parkin, Gerard
, p. 95 - 121 (1997)
The terminal zirconium chalcogenido complexes Cp2* Zr(E)(NC5H5) (Cp* = η5-C5Me5; E = O, S, Se, Te) are conveniently synthesized by the reactions of Cp2*Zr(CO)2 with either N2O or the elemental chalcogen (S, Se, Te) in the presence of pyridine. The [Zr=E] functionalities in these complexes are highly reactive and undergo a variety of 1,2-addition and cycloaddition reactions, resulting in a diverse array of products. For example, reactions of the zirconium oxo complex Cp2*Zr(O)(NC5H5) yield Cp2*Zr(OH)2, Cp2*Zr(η2-O2CMe)(η1-OCOMe). Cp2*Zr(OPh)2, Cp2* Zr(OH)(NH2), Cp2*Zr(OH)(NHPh), Cp2*Zr(OH)[η2-N(Ph)NH2], Cp2*Zr(H)(OSiH2Ph), [Cp2*Zr(H)](μ-O)[Cp2*Zr(OH)], Cp2*Zr(OH)[η1-OC(R)=CH2] (R = Me, Ph, But), Cp2*Zr(OH)I, Cp2*Zr(OMe)I, Cp2*Zr(OSiMe3)C1, Cp2*Zr[η2-OCH(R)OCH(R)O] (R = H, Pri, But), and Cp2*Zr[η2-OC(Ph)NC(Ph)N].