HITCHCOCK P. B.; LAPPERT M. F.; SMITH S. J., J. ORGANOMET. CHEM., 320,(1987) N 3, C27-C30
作者:HITCHCOCK P. B.、 LAPPERT M. F.、 SMITH S. J.
DOI:——
日期:——
Synthesis, structure, and reactions of the first homoleptic lithium-arsenic compound, [Li(μ-AsR2)]3 (R = CH(SiMe3)2)
作者:Peter B. Hitchcock、Michael F. Lappert、Stephen J. Smith
DOI:10.1016/0022-328x(87)85063-5
日期:1987.2
Reaction of Li with AsClR2 (R = CH(SiMe3)2) affords [Li(μ-AsR2]3 (I), the first structurally characterised dialkylarsenide, which in OEt2 at 25°C yields AsHR2, AsMeR2, AsHR2, or A.sR2 (II) with HCl, MeCl, ButCl, or SnCl2, respectively; upon removal of solvent, II furnishes As2R4 (III), which readily dissociates into II: the As3Li3 ring of I has a boat conformation and the average LiAs bond distance