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Updated: Aug 4, 2025
Facile Preparation of 2Z,4E-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
A Strong-Acid-Resistant [Th6 ] Cluster-Based Framework for Effectively and Size-Selectively Catalyzing Reductive
Xue-Rui Tian1, Zhi-Yu Jiang2, Sheng-Li Hou1
1Renewable Energy Conversion and Storage Center, Key Laboratory of Advanced Energy Material Chemistry, Department of Chemistry, Nankai University, Tianjin, 300071, China.
Abstract:
Utilization of N,N-dimethylformamide (DMF) as an amine source and reductant for synthesizing tertiary amines is a promising way to replace the substrates formaldehyde and dimethylamine, and it is desirable to seek porous acid-resistant catalysts for heterogeneous catalysis of this reaction. Herein, a robust metal-organic framework (MOF) {[Th6 O4 (OH)4 (H2 O)6 (BCP)3 ]⋅10 DMF}n (1) containing stacked nanocages with a diameter of 1.55 nm was constructed. Compound 1 can maintain its single-crystal structure even kept in air at 400 °C for 3 h, and in DMF or water at 200 °C for 7 days. Density functional theory (DFT) calculations suggested that the high interaction energy between the [Th6 O4 (OH)4 (H2 O)6 ]12+ clusters and ligands was responsible for the excellent stability of 1. Catalytic investigations revealed that 1 can effectively and size-selectively catalyze the reductive amination of aldehydes with DMF, and it can be reused at least five times without obvious loss in catalytic activity.
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