This technology involves a method for manufacturing a mesoporous catalyst, in which copper is supported on a carbon substrate by pyrolyzing the copper-based metal-organic framework HKUST-1 at 800°C in an argon atmosphere, and a method for using this catalyst with organic bases for primary alcohol oxidation.
While MOFs like HKUST-1 have gained attention as catalysts due to their high surface area and structural diversity, they often suffer from structural collapse and copper leaching during alcohol oxidation, leading to poor stability and reproducibility. Furthermore, conventional reaction conditions using inorganic bases result in significant yield variations depending on the substrate, making them difficult to apply universally to various primary alcohols.
This technology enhances the chemical and structural stability and durability of the catalyst by modifying the structure of HKUST-1 through high-temperature pyrolysis. It establishes optimal conditions using an organic base like 1-methylimidazole, combined with TEMPO, an oxygen atmosphere, and an acetonitrile solvent. It achieves a yield of over 94% for benzyl alcohol and maintains over 80% yield even after catalyst reuse. This technology can be applied to the synthesis of aldehydes for fine chemical intermediates, fragrances, and pharmaceutical raw materials, reducing process costs by replacing precious metals with reusable, low-cost copper catalysts.
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