Mesoporous silica/polyphosphoric acid (SBA-15/PPA) nanocomposites for acylation of naphthalene

Silica-polyphosphoric acid nanocomposites (SBA/PPA) were synthesized via direct and post-functionalization of ordered mesoporous SBA-15 materials with PPA. The catalytic studies for acylation of naphthalene in the liquid phase showed very high selectivity of 2-acylated product (A) over direct functionalized SBA/PPA nanocomposites.