What do titano- and zirconocenes do with diynes and polyynes?

被引:240
作者
Rosenthal, U [1 ]
Pellny, PM [1 ]
Kirchbauer, FG [1 ]
Burlakov, VV [1 ]
机构
[1] Univ Rostock, Inst Organ Katalyseforsch, D-18055 Rostock, Germany
关键词
D O I
10.1021/ar9900109
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A thorough investigation of the reactions of diynes, R(C=C)(2)R, and polyynes, R(C=C),R, with titanocene and zirconocene was performed using the metallocene sources Cp2M(C)(eta(2)-Me3SiC=CSiMe3) (M = Ti, L = -; M = Zr, L = THF, pyridine). The conversions show an array of different products generated in complexation, coupling, and cleavage reactions. These results include remarkable structures (e.g., five-membered metallacyclocumulenes) and reactions (e.g., C-C single-bond cleavage). In addition, the first C-C single-bond metathesis in homogeneous solution was discovered. The presented findings have been supported by theoretical studies.
引用
收藏
页码:119 / 129
页数:11
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