Divalent dirhodium imido complexes: formation, structure, and alkyne cycloaddition reactivity.

@article{Takemoto2008DivalentDI,
  title={Divalent dirhodium imido complexes: formation, structure, and alkyne cycloaddition reactivity.},
  author={Shin Takemoto and Shohei Otsuki and Yasuhiro Hashimoto and Ken Kamikawa and Hiroyuki Matsuzaka},
  journal={Journal of the American Chemical Society},
  year={2008},
  volume={130 28},
  pages={8904-5}
}
Dirhodium amido complexes [(Cp*Rh)2(mu2-NHPh)(mu2-X)] (X = NHPh (2), Cl (3), OMe (4); Cp* = eta5-C5Me5) were prepared by chloride displacement of [Cp*Rh(mu2-Cl)]2 (1) and have been used as precursors to a dirhodium imido species [Cp*Rh(mu2-NPh)RhCp*]. The imido species can be trapped by PMe3 to give the adduct [Cp*Rh(mu2-NPh)Rh(PMe3)Cp*] (5) and undergoes a formal [2 + 2] cycloaddition reaction with unactivated alkynes to give the azametallacycles [Cp*Rh(mu2-eta2:eta3-R1CCR2NPh)RhCp*] (R1 = R2… CONTINUE READING