A new microporous organic–inorganic hybrid titanium phosphate for selective acetalization of glycerol

Abstract

We developed a novel strategy for synthesizing a highly acidic microporous hybrid titanium phosphate material (H-TiPO_x) by incorporating 5-aminosalicylic acid (5-ASA) into the titanium phosphate framework. This new H-TiPO_x serves as a Brønsted acid catalyst, exhibiting remarkable total surface acidity of 5.9 mmol g⁻¹ and it efficiently catalyzes the acetalization of abundant biomass derived glycerol to solketal with over 99% selectivity.