220876-35-7Relevant academic research and scientific papers
Reactions of the rhenium allyl hydrido complex Cp*Re(η3-C3H5)(CO)(H) with the electrophiles CF3CO2H, CF3SO3H, NOBF4, [p-N2C6H4OMe][BF4] and [Ph3C][BF4]
He, Ying-Xia,Sutton, Derek
, p. 213 - 223 (1999)
The rhenium hydrido allyl complex Cp*Re(η3-C3H5)(CO)(H) (1) reacted with NOBF4 or [p-N2C6H4OMe][BF4] at -78°C to give [Cp*Re(η2-C3H6)(CO)(NO)][BF 4] (2) or [Cp*Re(η2-C3H6)(CO)(N 2C6H4OMe)][BF4] (3), respectively. In these reactions addition of the electrophile is accompanied by transfer of the hydride ligand to the allyl group to form the propene ligand. Complex 1 reacted with [Ph3C][BF4] in CH3CN at -78°C to abstract the hydride ligand and form the allyl acetonitrile complex [Cp*Re(η3-C3H5)(CO)(CH 3CN)][BF4] (4). Complex 1 reacted with CF3CO2H or CF3SO3H to form the hydrido propene complexes Cp*Re(η2-C3H6)(H)(CO)(CF 3CO2) (5) or Cp*Re(η2-C3H6)(H)(CO)(CF 3SO3) (6). Studies with CF3CO2D demonstrated that both Cp*Re(η2-C3H6)(D)(CO)(CF 3CO2) and Cp*Re(η2-C3H5D)(H)(CO)(CF 3CO2) are formed. This is consistent with a mechanism in which D+ attacks the metal followed by transfer of either D or H to the allyl group. Complex 1 was found not to react with C2H4, hexene, cyclohexene, MeCCMe, PhCCMe, CH3CN or PMe3.
