Three-Dimensional Neodymium Metal–Organic Framework for Catalyzing the Cyanosilylation of Aldehyde and the Synthesis of 2,3-Dihydroquinazolin-4(1H)‑one Derivatives

In this work, a novel 3D lanthanide metal–organic framework (Ln-MOF) Nd-cdip (H4cdip = 5,5′-carbonyldiisophthalic acid) was successfully synthesized, which could be used as an efficient heterogeneous catalyst for cyanosilylation and the synthesis of 2,3-dihydroquinazolin-4­(1H)-one derivatives at ro...

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Published in:Inorganic chemistry 2023-07, Vol.62 (26), p.10359-10368
Main Authors: Liu, Yuqian, Zhao, Peiran, Duan, Chunying, He, Cheng
Format: Article
Language:English
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Summary:In this work, a novel 3D lanthanide metal–organic framework (Ln-MOF) Nd-cdip (H4cdip = 5,5′-carbonyldiisophthalic acid) was successfully synthesized, which could be used as an efficient heterogeneous catalyst for cyanosilylation and the synthesis of 2,3-dihydroquinazolin-4­(1H)-one derivatives at room temperature based on the Lewis acid sites in the channels of the MOF. Moreover, Nd-cdip had an excellent turnover number (500) for catalyzing cyanosilylation in no solvent condition. Nd-cdip could be reused in both of the above-mentioned reactions at least five times without a significant decrease in yield. The possible mechanism of cyanosilylation catalyzed by Nd-cdip was studied by using the luminescence properties of Tb-cdip, which has the same structure and functions as Nd-cdip. Furthermore, both reactions catalyzed by Nd-cdip were fitted to zero-order dynamics.
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.3c01230