作者:Herbert Lehmkuhl、Friedhelm Danowski、Gerlinde Mehler、Joanna Popa̵wska、Stanislaw Pasynkiewicz
DOI:10.1016/0022-328x(89)87125-6
日期:1989.3
(CpNi)2(MeCCMe) (6) via (CpNiMe)2(MeCCMe) (3), which is present in only small concentrations. 2 is more stable and reacts above 0°C to give both the known compounds (CpNi)2(Me3SiCCSiMe3) (7) and the [bis(1,1-trimethylsilyl)-η3-allyl]nickel compound 5 as a result of the addition of the MeNi bond to the CC bond of the coordinated alkyne in 2 followed by various rearrangements. The alkyne can be displaced
的Cp 2分在-78镍发生反应℃用的MeLi和RCCR,得到耐热类型CpNiMe的复合物(η 2 -RCCR)(R =我(1),森达3(2))。2-丁炔在高于-30°C的温度下从1解离,并通过(CpNiMe)2(MeCCMe)(3)释放乙烷生成(CpNi)2(MeCCMe)(6)。2更稳定并反应在0℃以上,得到两个已知化合物(CPNI)2(ME 3 SiCCSiMe 3)(7)和[双(1,1-三甲基甲硅烷)-η 3-烯丙基]镍化合物5,这是由于在2中将Me bondNi键加到配位炔烃的CC键上,然后进行了各种重排。在与乙腈的平衡反应中,炔烃可从1和2取代,得到CpNiMe(MeCN)(4)。