Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstr. 40, 48149 Münster, Germany.
Chem Commun (Camb). 2018 May 31;54(45):5724-5727. doi: 10.1039/c8cc02680g.
The methyl zirconocene complex Cp2Zr(Me)OMes reacts with H3C-B(C6F5)2 and CO to give the respective acetyl(methyl)borate Zr complex. Cp2Zr(H)OMes reacts with H3C-B(C6F5)2 and CO to give the respective acetyl(hydrido)borate Zr product, admixed with a minor amount of the formyl(methyl)borate Zr complex isomer. Prolonged exposure to CO under close to ambient conditions results in the uptake of another CO equivalent to yield the corresponding borata-β-lactone zirconocene product.
茂基金属锆配合物 Cp2Zr(Me)OMes 与 H3C-B(C6F5)2 和 CO 反应,分别得到相应的乙酰(甲基)硼酸盐锆配合物。Cp2Zr(H)OMes 与 H3C-B(C6F5)2 和 CO 反应,分别得到相应的乙酰(氢)硼酸盐锆产物,同时还混入少量的甲酰(甲基)硼酸盐锆异构体。在接近环境条件下,长时间暴露于 CO 中会导致再吸收一个 CO 当量,生成相应的硼代-β-内酰胺锆配合物产物。