Magnetic wheel six-nuclear terbium cluster compound catalyst, preparation method and application thereof

A technology of clusters and catalysts, which is applied in the field of magnetic wheel hexanuclear terbium cluster catalysts and its preparation, can solve the problems of insufficient catalyst activity, complex catalyst structure, long reaction time, etc., and achieve good industrial application prospects, reaction The effect of short time and simple preparation process

Pending Publication Date: 2021-07-27
鄂尔多斯应用技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems that the catalyst used in the existing MPV reaction has a complex structure, is not easy to prepare, the catalyst activity is not high enough, the dosage is large, and the reaction time is long, and a hexanuclear terbium cluster catalyst for magnetic wheels and its preparation are provided Methods and Applications

Method used

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  • Magnetic wheel six-nuclear terbium cluster compound catalyst, preparation method and application thereof
  • Magnetic wheel six-nuclear terbium cluster compound catalyst, preparation method and application thereof
  • Magnetic wheel six-nuclear terbium cluster compound catalyst, preparation method and application thereof

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Embodiment 1

[0016] A kind of magnetic wheel hexanuclear terbium cluster catalyst in the present embodiment, its structural formula is:

[0017]

[0018] In the formula: each terbium atom forms an eight-coordinated structure with three oxygen atoms in the ligand, one nitrogen atom, oxygen atoms in two adjacent ligands, and two oxygen atoms in the nitro group. The eight-coordinate structural units are sequentially bridged by oxygen atoms to form a wheel-shaped hexa-nuclear metal terbium cluster molecular structure.

[0019] The preparation method of above-mentioned magnetic wheel hexanuclear terbium cluster catalyst, it comprises the steps:

[0020] 0.05mmol of Tb(NO 3 ) 3 ·6H 2 The acetonitrile of 0, 10ml, the triethylamine of 0.05mmol and the triethanolamine of 0.1mmol are packed in the capacity successively in the glass bottle with cover of 20ml, then it is sealed, and the glass bottle after sealing is placed in the temperature of 80 ℃ The reaction was carried out in an oven for 3...

Embodiment 2

[0026] (1) The preparation of the hexanuclear terbium cluster catalyst for magnetic wheels is the same as in Example 1.

[0027] (2) Catalyzing the reduction of acetophenone to 1-phenylethanol (MPV): Add the magnetic wheel hexanuclear terbium cluster catalyst (0.46g, 0.2mmol) and 3.0mL isopropanol to a 25ml reflux condenser Then add acetophenone (0.48g, 4.0mmol) to the reaction solution in the flask. After the reaction mixture continues to reflux for 2 hours, it is cooled, and a small amount of reaction product is taken with a GC-MS coupled instrument. Monitoring, yield 89%.

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Abstract

The invention relates to a magnetic wheel six-nuclear terbium cluster compound catalyst, a preparation method and application thereof, belongs to the technical field of rare earth complex catalysts, and aims to mainly solve the technical problems of complex structure, difficulty in preparation, low catalyst activity, large dosage and long reaction time of the catalyst used in the existing MPV reaction. According to the technical scheme, the preparation method of the magnetic wheel six-core terbium cluster compound catalyst comprises the following steps: sequentially adding 0.05 mmol of Tb(NO3)3.6H2O, 10 ml of acetonitrile, 0.05 mmol of triethylamine and 0.1 mmol of triethanolamine into a container with a cover, then sealing the container, putting the sealed container into a drying oven at a temperature of 70-80 DEG C to react for 30-36 hours, and after the reaction is finished, taking out the sealed container, standing and cooling to room temperature, and separating out colorless blocky crystals, namely the magnetic wheel hexanuclear terbium cluster compound catalyst.

Description

technical field [0001] The invention relates to a hexanuclear terbium cluster catalyst for a magnetic wheel, a preparation method and application thereof, and belongs to the technical field of rare earth complex catalysts. Background technique [0002] As a new type of functional material, rare earth complexes have attracted more and more attention from chemical, physical, biological and material scientists because of their unique magnetic, optical and electrical properties. In the past ten years, rare earth clusters have shown certain characteristics due to their unique structure and molecular-based magnetic materials, especially their broad application prospects in adsorption, separation, catalysis, chemical sensing, drug delivery, etc. And received much attention. The Meerwein-Ponndorf-Verley (MPV) reaction is a selective synthetic method for the preparation of primary and secondary alcohols, and is also an important transformation process in the fields of organic synthe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/00B01J31/22C07C33/22C07C29/143
CPCC07F5/003B01J31/2213B01J31/1805C07C29/143B01J2531/38B01J2231/643C07C33/22
Inventor 华宇鹏王文敏李斌汪向磊
Owner 鄂尔多斯应用技术学院
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