No abstract

Synthesis of diphenylmethane (DPM) from benzene and benzyl chloride with acidic ionic liquids, such as (C 2 H 5 ) 3 NHCl-AlCl 3 , (C 2 H 5 ) 3 NHCl-ZnCl 2 , (C 2 H 5 ) 3 NHCl-FeCl 3 , and (C 2 H 5 ) 3 NHCl-CuCl 2 , as catalysts was investigated. The results showed that (C 2 H 5 ) 3 NHCl-AlCl 3 is a highly efficient catalyst. Both the yield and the selectivity of DPM reached up to 100% in the presence of (C 2 H 5 ) 3 NHCl-AlCl 3 as catalyst, when the reaction was carried out at ambient conditions.