Novel α,ω-bis(trialkylsilyl)-allyl and -1-azapentadienyl ligands; structures of [Li{η<sup>3</sup>-CH(CHSiMe<sub>2</sub>Bu<sup>t</sup>)<sub>2</sub>}(tmen)], [Li{N(SiMe<sub>3</sub>)CBu<sup>t</sup>(CH)<sub>3</sub>SiMe<sub>2</sub>Bu<sup>t</sup>}(tmen)] and [K{η<sup>4</sup>-N(SiMe<sub>2</sub>Bu<sup>t</sup>)CBu<sup>t</sup>(CH)<sub>3</sub>SiMe<sub>2</sub>Bu<sup>t</sup>}]<sub>∞</sub>
作者:Peter B. Hitchcock、Michael F. Lappert、Zhong-Xia Wang
DOI:10.1039/cc9960001647
日期:——
The eta(3)-allyl-lithium or -potassium compounds [Lieta(3)-CH(CHSiMe(2)Bu(t))(CHSiMe(2)R)}(tmen)] (R = Bu(t) 3a, Me 3b) and Keta(3)-CH(CHSiMe(2)Bu(t))(2)} (obtained from Bu(t)Me(2)SiCH(2)CH=CHSiMe(2)R) with Bu(t)CN afford the 1-azapentadienyl-lithium or -potassium compounds [Lieta(1)-N(SiMe(2)R)C(Bu(t))(CH)(3)SiMe(2)Bu(t)}L] (L = tmen, R = Bu(t) 6a, Me 6b; L absent, R = Bu(t) 8a, Me 8b) or [Keta(4)-N(SiMe(2)Bu(t))C(Bu(t))(CH)(3)SiMe(2)Bu(t)}](infinity) 7.