Ultra-selective p-xylene production through cycloaddition and dehydration of 2,5-dimethylfuran and ethylene over tin phosphate

A series of SnPO catalysts was systematically prepared and characterized in detail to provide an insight into the structure-activity relationship for PX production from 2,5-dimethylfuran (DMF) and ethylene. SnPO possessing tetrahedrally coordinated Sn(Ⅳ) as the active sites exhibited an ultra-high PX yield of 93%. The outstanding catalytic performance of SnPO could be ascribed to two aspects: a controllable adjustment in acid sites...