Vioxxin modified metal organic coordination compounds, and preparation method and application thereof
CN119708526BActive Publication Date: 2026-06-19JIAXING UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIAXING UNIV
- Filing Date
- 2024-12-23
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
Existing catalysts suffer from homogeneity and harsh reaction conditions in the synthesis of 4H-pyran, making it difficult to meet the requirements of efficient recovery and green chemistry.
Method used
By incorporating viologen-modified organometallic coordination compounds, methyl viologen and ethyl viologen into the MOF framework of Zn-NH2-BDC, a viologen-MOF catalyst was constructed for the synthesis of 4H-pyran.
Benefits of technology
The synthesis of 4H-pyran was achieved under mild conditions with high efficiency. The catalyst is recyclable and maintains good performance, solving the problem of homogeneous catalyst recovery and meeting the requirements of green chemistry.
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Figure CN119708526B_ABST
Abstract
This invention belongs to the field of organometallic coordination compound technology, specifically relating to viologen-modified organometallic coordination compounds, their preparation methods, and applications. This invention constructs two novel viologen-MOFs, compound 1 and compound 2, using a hydrothermal method. Based on this, the structures of compounds 1 and 2 were analyzed and characterized, and their structural features were studied using infrared spectroscopy, thermogravimetric analysis, X-ray powder diffraction, and ultraviolet reflectance testing. The study shows that both viologen-MOFs involve inserting viologen molecules into the pores of the MOF framework. The unique electron transfer properties of viologen and the Lewis acid properties of the MOF framework synergistically catalyze the Knoevenagel condensation-Michael addition cyclization reaction.
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