Synthesis and Formal Ring-Opening Reactions of (η<sup>5</sup>-C<sub>5</sub>Me<sub>5</sub>)Zr[η<sup>2</sup>-CH<sub>2</sub>CH(C<sub>6</sub>H<sub>5</sub>)][N(<sup>i</sup>Pr)C(Me)N(<sup>i</sup>Pr)], a Base-Free η<sup>2</sup>-Styrene Complex of Zirconium
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Synthesis of a base-free η2-styrene complex of zirconium has been achieved and its molecular structure analyzed by X-ray crystallography. This compound undergoes protonolysis and σ-bond metathesis of a formal zirconacyclopropane ring with a variety of reagents. With phenylacetylene, ring opening occurs on the more substituted side, while Me3MCl (M = Si, Sn) effect ring opening on the least substituted side. Hydrogenolysis further proceeds rapidly to provide a zirconanorbornadiene derivative in high yield under conditions where a structurally related dimethyl complex remains inert.
创建时间：
2016-05-05
