Friedel–Crafts type alkylation of benzene and other aromatic compounds using MgGa2O4 (spinel)–MgO based catalysts

摘要: Abstract The MgGa 2 O 4 (spinel)–MgO catalyst (with Mg/Ga=2.0) requires a long induction period for exhibiting high catalytic activity in the benzylation of benzene, naphthalene, substituted benzenes and naphthalenes, depending upon aromatic substrate. However, after its first use or pretreatment with gaseous HCl, shows almost no also has very activity, even presence moisture reaction mixture. But physico-chemical properties are changed drastically partial collapse spinel structure. catalytically active species this expected to be mainly Ga 3 GaCl dispersed on MgO.