Method for preparing phthalic anhydride and derivatives thereof by catalytically oxidizing aromatic ketone through V-N-C material

The invention provides a method for preparing phthalic anhydride and derivatives thereof by catalytically oxidizing aromatic ketone through a V-N-C material, and belongs to the technical field of fine chemicals. According to the method, molecular oxygen is used as an oxidizing agent, a V-N-C material is used as a catalyst, and phthalic anhydride and derivatives thereof are prepared through liquid-phase selective oxidation of aromatic ketone under mild conditions. The V-N-C material is prepared by mixing an organic nitrogen-containing compound and a vanadium-containing compound to obtain a precursor, and calcining the precursor in an inert atmosphere at 300-1000 DEG C for 0.5-20 hours. The method provided by the invention is mild and efficient, and has very strong practicability and wide application prospects. 本发明提供一种V-N-C材料催化氧化芳香酮制备邻苯二甲酸酐及其衍生物的方法，属于精细化学品的技术领域。该方法以分子氧为氧化剂，采用V-N-C材料为催化剂，在温和条件下通过液相选择氧化芳香酮制备邻苯二甲酸酐及其衍生物。该V-N-C材料是先通过有机含氮化合物与含钒化合物混合得到前驱体，再在惰性气氛中、300-1000℃温度下煅烧0.5-20h后制备得到。本发明提供的方法温和高效，具有很强的实用性和广阔的应用