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Synthesis and structure of an air-stable bis(pentamethylcyclopentadienyl) zirconium pentafluorbezenesulfonate and its application in catalytic epoxide ring-opening reactions
Tetrahedron ( IF 2.1 ) Pub Date : 2018-01-11 , DOI: 10.1016/j.tet.2018.01.016
Ningbo Li , Lingxiao Wang , Haojiang Wang , Jie Qiao , Wenjie Zhao , Xinhua Xu , Zhiwu Liang

An air-stable mononuclear complex of bis(pentamethylcyclopentadienyl) zirconium pentafluorbezenesulfonate was successfully synthesized by treating C6F5SO3Ag with [(CH3)5Cp]2ZrCl2, which showed the cationic uninuclear structure of [{(CH3)5Cp}2Zr(CH3CN)2(H2O)][OSO2C6F5]2·CH3CN (1) confirmed by the X-ray analysis. Complex 1 was also characterized by other techniques and found to have the good nature of air-stability, water tolerance, thermally-stability and strong Lewis-acidity. Moreover, the complex showed high catalytic activity and recyclability in catalytic epoxide ring-opening reactions by amines or alcohols. This catalytic system affords a simple and efficient approach for synthesis of β-amino alcohols or β-alkoxy alcohols.



中文翻译:

空气稳定的双(五甲基环戊二烯基)五氟苄基磺酸锆的合成,结构及其在催化环氧化物开环反应中的应用

用[(CH 35 Cp] 2 ZrCl 2处理C 6 F 5 SO 3 Ag,成功合成了双(五甲基环戊二烯基)五氟苯磺酸锌锆的空气稳定的单核配合物,显示[[((CH 3)通过X射线分析证实了5 Cp} 2 Zr(CH 3 CN)2(H 2 O)] [OSO 2 C 6 F 5 ] 2 · CH 3 CN(1)。综合大楼1还通过其他技术对其进行了表征,发现具有良好的空气稳定性,耐水性,热稳定性和强路易斯酸度。此外,该络合物在胺或醇的催化环氧化物开环反应中显示出高催化活性和可回收性。该催化体系为合成β-氨基醇或β-烷氧基醇提供了一种简单而有效的方法。

更新日期:2018-01-11
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