Gong Hong
2008
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Journal
Industrial Catalysis
Abstract
Benzyl bromide was synthesized from potassium bromide,a by-product from synthesis of 2-hydroxy-4-n-octyloxybenzophenone(UV-531),and benzoic alcohol in the presence of concentrated sulfuric acid.The optimal condition was obtained as follows: n(potassium bromide)=0.1 mol,n(benzoic alcohol)=0.08 mol,V(concentrated sulfuric acid)=5 mL,V(H2O)=2.5 mL,reflux for 4 h.Yield of up to 94%.was obtained.Raw product was analyzed by GC and almost no by-product was detected.The pure product was characterized by IR and index of refraction.