Oxidative addition of organic halides to (η-C5H5)3U(THF) (THF = tetrahydrofuran). A convenient new synthesis of triscyclopentadienyl uranium(IV) hydrocarbyl complexes
作者:Claude Villiers、Michel Ephritikhine
DOI:10.1016/0022-328x(90)85163-s
日期:1990.9
Cp3U(THF) (Cp = η-C5H5; THF = tetrahydrofuran) reacts with organic halides RX to give the equimolecular mixture of the Cp3UX and Cp3UR compounds. The features of the reaction are characteristic of an atom abstraction oxidative addition mechanism. Treatment of Cp3UCl with RX in the presence of sodium amalgam leads to quantitative formation of the Cp3UR complexes.
Villiers, Claude; Ephritikhine, Michel, New Journal of Chemistry, 1991, vol. 15, p. 559 - 564
作者:Villiers, Claude、Ephritikhine, Michel
DOI:——
日期:——
Anionic triscyclopentadienyluranium(III) hydrides
作者:Jean-Claude Berthet、Claude Villiers、Jean-François Le Maréchal、Béatrice Delavaux-Nicot、Monique Lance、Martine Nierlich、Julien Vigner、Michel Ephritikhine
DOI:10.1016/0022-328x(92)83484-y
日期:1992.11
Addition of H- to [(C5H4R)3U] (R = H, Me, SiMe3, or (t)Bu) or sodium amalgam reduction of the U(IV) hydrides [(C5H4R)3UH] (R = SiMe3, or (t)Bu) afforded the hydrido-bridged anions [(C5H4R)3 UHU(C5H4R)3]- (R = H or Me) or the monomeric anions [(C5H4R)3UH]- (R = SiMe3 or (t)Bu). Crystals of [Na(18-crown-6)(THF)2][(C5H4SiMe3)3UHU(C5H4SiMe3)3] were obtained from an equimolar mixture of [Na(18-crown-6)][(C5H4SiMe3)3UH] and [(C5H4SiMe3)3U] and their structure determined.