156301-37-0Relevant articles and documents
Selective oxidants for organometallic compounds containing a stabilising anion of highly reactive cations: (3,5(CF3)2C6H3)4B -)Cp2Fe+ and (3,5(CF3)2C6H3)4B -)Cp*2Fe+
Chávez, Ivonne,Alvarez-Carena, Angel,Molins, Elies,Roig, Anna,Maniukiewicz, Waldemar,Arancibia, Alenjandra,Arancibia, Verónica,Brand, Holger,Manuel Manríquez, Juan
, p. 126 - 132 (2000)
A major interest in ferrocenium compounds arises from their usefulness as selective oxidants to prepare mixed-valence metallocenic stable compounds. In this paper, Cp2FeBAr′4=((3,5(CF3)2C 6H3)4B-)Cp2Fe +) (a), and Cp*2FeBAr′4=((3,5(CF3) 2C6H3)4B-) Cp*2Fe+) (b) are reported. These compounds have wide applications in the obtention of new organometallic salts with improved stability. The selective oxidation capacity of compounds a and b was investigated by the reaction of [Cp*CoII(C8H6)FeII(C 8H7)] with stoichiometric quantities of Cp2FeBAr′4 or Cp*2FeBAr′4 where [Cp*CoIII(C8H6)FeII(C 8H7)]BAr′4 was exclusively obtained. All salts that have BAr′4- as counterion showed an enhanced solubility in low-polarity solvents, especially in diethyl ether. This fact allowed us to perform non-conventional measurements like cyclic voltammetry in diethyl ether as solvent with NaBAr′4 as supporting electrolyte. Single-crystal structural determination of a and b was also achieved.
Efficient method for the preparation of aromatic bromides and iodides by ferrocenium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate-catalyzed halogenation with bromine and iodine monochloride
Kitagawa, Hideo,Shibata, Tsuyoshi,Matsuo, Jun-Ichi,Mukaiyama, Teruaki
, p. 339 - 345 (2007/10/03)
Direct iodination and bromination of various aromatic compounds with 1.1-2.0 molar amounts of iodine monochloride (ICl) and 1.1-3.0 molar amounts of bromine proceeded smoothly to afford the corresponding aromatic iodides and bromides, respectively, in good to excellent yields by using 0.05 molar amount of ferrocenium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate, Cp2FeB[3,5-(CF3)2C6H 3]4 (1), in the presence of ZnO. Iodination of toluene in the co-existence of 0.5 molar amount of DDQ also proceeded to give iodotoluenes in high yield.
Synthesis, crystal structure, and reactions of the 17-valence-electron rhenium methyl complex [(η5-C5Me5)Re(NO)(P(4-C6H4CH3)3)(CH3)]*+ B(3,4-C6H3(CF3)2)4-: experimental and computational bonding comparisons with 18-electro
Bras, Jean Le,Jiao, Haijun,Meyer, Wayne E.,Hampel, Frank,Gladysz, J. A.
, p. 54 - 66 (2007/10/03)
Reactions of methyl complex (η5-C5Me5)Re(NO)(P(4-C6H4CH3)3)(CH3) (2b) and the ferrocenium salt (η5-C5H5)2Fe*+ BArF- (BArF-=B(3,5-C6H3(CF3)2)4-) or the trityl salt Ph3C