Cobalt zeolite catalysts for condensation cyclization reactions and methods of making and using the same
By utilizing the coordination effect between cobalt ions and ligands and the spatial confinement effect of zeolite support, the problems of easy aggregation and metal residue of Rh(III) and Pd catalysts were solved through the preparation method of cobalt zeolite catalyst, thus realizing the efficient and environmentally friendly synthesis of quinoline derivatives.
CN122399879APending Publication Date: 2026-07-17HEXI UNIV +1
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Patent Information
- Application Number
- CN202610564460.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-27
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing Rh(III) and Pd catalysts are prone to aggregation and metal byproduct residues during the synthesis of quinoline and its derivatives, which affect catalytic activity and cause environmental pollution.
Method used
Using a cobalt zeolite catalyst, cobalt ions are coordinated with 3-[2-(2-aminoethylamino)ethylamino]propyltrimethoxysilane to form a [Co-TAPTS]2+ complex, which is then immobilized on a zeolite support. After reduction treatment, highly dispersed cobalt nanoparticles are obtained, avoiding cobalt ion aggregation.
Benefits of technology
The synthesis of quinoline derivatives with high atom utilization was achieved, with water as a byproduct, which is environmentally friendly, has high catalytic activity, and is easy to separate.
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Figure CN122399879A_ABST
Abstract
本发明属于过渡金属钴催化剂材料制备技术领域，具体涉及一种用于缩合环化反应的钴沸石催化剂及其制备方法和应用。以硝酸钴提供中心阳离子，3‑[2‑(2‑氨基乙基氨基)乙基氨基]丙基三甲氧基硅烷以N配体配位的方式使钴离子分散，得到[Co‑TAPTS]2+配合物，并固定于沸石载体上，再对钴离子还原得到。本发明中的钴沸石催化剂在制备喹啉衍生物中，原子利用率高，副产物为水，对环境无污染。
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