Mechanochemical Immobilisation of Metathesis Catalysts in a Metal-Organic Framework

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• 作者：Jurjen Spekreijse ; Prof. Lars Ö ; hrströ ; m ; Prof. Johan P. M. Sanders ; Prof. Johannes H. Bitter and Dr. Elinor L. Scott
• 刊名：Chemistry - A European Journal
• 出版年：2016
• 出版时间：October 17, 2016
• 年：2016
• 卷：22
• 期：43
• 页码：15437-15443
• 全文大小：1636K
• ISSN：1521-3765

文摘

A simple, one-step mechanochemical procedure for immobilisation of homogeneous metathesis catalysts in metal–organic frameworks was developed. Grinding MIL-101-NH₂(Al) with a Hoveyda–Grubbs second-generation catalyst resulted in a heterogeneous catalyst that is active for metathesis and one of the most stable immobilised metathesis catalysts. During the mechanochemical immobilisation the MIL-101-NH₂(Al) structure was partially converted to MIL-53-NH₂(Al). The Hoveyda–Grubbs catalyst entrapped in MIL-101-NH₂(Al) is responsible for the observed catalytic activity. The developed synthetic procedure was also successful for the immobilisation of a Zhan catalyst.