Photochemically Induced Reductive Elimination as a Route to a Zirconocene Complex with a Strongly Activated N<sub>2</sub>Ligand
作者:Grant W. Margulieux、Scott P. Semproni、Paul J. Chirik
DOI:10.1002/anie.201402401
日期:2014.8.25
The zirconocenedinitrogencomplex [(η5‐C5Me4H)2Zr}2(μ2,η2,η2‐N2)] was synthesized by photochemical reductive elimination from the corresponding zirconium bis(aryl) or aryl hydride complexes, providing a high‐yielding, alkali metal‐free route to strongly activated early‐metal N2 complexes. Mechanistic studies support the intermediacy of zirconocene arene complexes that in the absence of sufficient
Carbon–fluorine bond activation of perfluorinated arenes with Cp*2ZrH2
作者:Bradley M Kraft、William D Jones
DOI:10.1016/s0022-328x(02)01640-6
日期:2002.9
Reaction of Cp-2*ZrH2 (Cp*, pentamethylcyclopentadienyl) with excess hexafluorobenzene produces a mixture of (Cp2ZrHF)-Zr-*. C6F5H and Cp-2*Zr(C6F5)H in ca. 2:1:1 ratio. Reaction of Cp-2*ZrH2 with excess C6F5H produces a mixture of Cp-2*ZrHF. Cp-2*Zr(C6F5)H, Cp-2*Zr(o-C6F4H)H, p-C6F4H2, and o-C6F4H2 with preferred ortho aromatic C-F activation. Dual mechanisms are proposed for the formation of (ArH)-H-F and Cp-2*Zr(Ar-F)H species. (C) 2002 Elsevier Science B.V. All rights reserved.