Author/Authors :
Hartati Universitas Airlangga - Faculty of Science and Technology - Department of Chemistry, Indonesia , Hartati Institut Teknologi Sepuluh Nopember - Faculty of Mathematics and Natural Sciences - Laboratory of Material Chemistry and Energy, cLaboratory of Natural Products and Chemical Synthesis, Department of Chemistry, Indonesia , Prasetyoko, Didik Institut Teknologi Sepuluh Nopember - Faculty of Mathematics and Natural Sciences - Department of Chemistry, Laboratory of Material Chemistry and Energy, Indonesia , Santoso, Mardi Institut Teknologi Sepuluh Nopember - Faculty of Mathematics and Natural Sciences - Department of Chemistry, Laboratory of Natural Products and Chemical Synthesis, Indonesia , Bahruji, Hasliza Cardiff University - Cardiff Catalysis Institute, School of Chemistry, UK , Triwahyono, Sugeng Universiti Teknologi Malaysia - Ibnu Sina Institute for Fundamental Science Studies, Malaysia
Abstract :
We report the synthesis of highly active mesoporous aluminosilicate for the acetalization of 3,4- dimethoxybenzaldehyde with propylene glycol. The existing synthesis methods for aluminosilicate and ZSM-5 were modified to produce aluminosilicate material with hierarchical porous structure. A combination of two structure directing agents, tetrapropylammonium hydroxide (TPAOH) and cetyltrimethylammonium bromide (CTAB), produced a highly active aluminosilicate framework that provides a wide access for bulky reactants and strong acid sites to catalyse the reaction. The pore structure and the strength of the acid sites were crucial for high conversion of 3,4-dimethoxybenzaldehyde.
Keywords :
Hierarchical porous aluminosilicate , acetalization , 3,4 , dimethoxybenzaldehyde
