Modern Friedel–Crafts Chemistry. Part 24.† Alkylation of Benzene with 1,2-Dibromo-3-chloro-2-methylpropane in the Presence of Lewis and Brønsted Acid Catalysts‡

Investigation of Friedel‐Crafts Alkylation in the Presence of Supported Sulfonic Acid on Silica Gel

“…Silanol groups are condensed and they form the polymer siloxane, this act creates an amorphous material consisting of spherical particles consisting of SiO 4 groups irregularly. Applications of silica gel are due to its surface characters and depend on the distribution and nature of hydroxyl groups on the surface [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41] . Various techniques such as NMR, IR, Raman, and chemical experiments have been used to determine the silica structure.…”

“…The results obtained show that OH groups present in silica surface. This compound was studied in various mechanisms such as phenols nitration, de-protection of tri methyl silyl ether, the epoxy ring opening, oxidation of alcohol, aldol ketone condensation and the other reactions as a catalyst [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41] .…”