▎ 摘　　要

NOVELTY - Catalyst comprises iron oxide doped with copper iodide loaded in graphene oxide. The loading weight of copper ion is 10-11 wt.%. USE - Catalyst used for synthesizing quinazoline compound (claimed). ADVANTAGE - The catalyst is simple and can be recycled without losing high efficiency. It has high activity, and high recovery rate. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) preparation of catalyst comprising adding graphene oxide powder in 2-pyrrolidinone, and sonicating under nitrogen atmosphere for 2-4 hours to get mixture; heating mixture, mechanical stirring, adding dropwise ferric acetylacetonate solution, and stirring under reflux to get black precipitate; magnetic recovering black precipitates, washing and drying; and adding copper iodide in anhydrous ethanol under nitrogen atmosphere, stirring under reflux, recovering solid black, washing, and drying; and (2) synthesis of quinazolinone compound comprising mixing catalyst, amino acids, cesium carbonate, and o-halo benzamide glycol/dimethyl sulfoxide at 110-130 degrees C under reflux for 5-7 hours; recovering magnetic black solids after reacting, washing and drying to recover catalyst; and magnetic recovering remaining mixture in second step with ethyl acetate and water at ratio of 1:1, extracting with extractant, and separating organic phase quinazolinone compound by column chromatography.