The reaction of π-cyclopentadienyldicarbonylcobalt with silyl-substituted acetylenes
作者:Hideki Sakurai、Josaburo Hayashi
DOI:10.1016/s0022-328x(00)80462-3
日期:1972.6
The reaction of (π-C5H5)Co(CO)2 with PhCCSiMe2R (R = Me, SiMe3) gave two isomeric cyclobutadiene complexes, cis- and trans-(π-C5H5)Co[Ph2C4(SiMe2R)2], in almost quantitative yields. However, the reaction with RMe2SiCCSiMe2R (R = Me, Ph) led to the formation of new dinuclear cobalt complexes. For example, with bis(trimethylsilyl)acetylene, (π-C5H5)2Co(CO)[(Me3Si)2C2] was obtained quantitatively. The
的(π-C的反应5 ħ 5)的Co(CO)2与PhCCSiMe 2 R(R = Me中,森达3),得到两种异构体环丁二烯络合物,顺式-和反式(π-C - 5 ħ 5)有限公司[Ph 2 C 4(SiMe 2 R)2 ],几乎定量产率。然而,随着RME反应2 SiCCSiMe 2 R(R = Me中,PH)导致了新的双核钴配合物的形成。例如,与双(三甲基甲硅烷基)乙炔,(π-C 5 H ^ 5)2的Co(CO)[(ME 3定量获得Si)2 C 2 ]。后者进一步转化为(πC 5 ħ 5)有限公司(PH 4 Ç 4)和(πC 5 ħ 5)有限公司[顺-Ph 2 Ç 4(ME 3 Si)的2 ]通过用PhCCPh治疗。描述了这些新化合物的物理性质和光谱特征。