Alkylation of Toluene with 1,3-Pentadiene over [bupy]BF4-AlC13 Ionic Liquid Catalyst

The alkylation of toluene with 1,3-pentadiene to produce pentyltoluene was carried out to obtain 2,6-dimethylnaphalene, which is an important intermediate during the production of 2,6-naphthalene dicarboxylic acid. Based on our previous work using anhydrous AlC13 as catalyst, [bupy]BF4-AlC13 ionic l...

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Bibliographic Details
Published in:Chinese journal of chemical engineering 2007-10, Vol.15 (5), p.680-682
Main Authors: Tian, Li, Cao, Fahai, Fang, Dingye, Guo, Shizhuo
Format: Article
Language:English
Online Access:Get full text
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Summary:The alkylation of toluene with 1,3-pentadiene to produce pentyltoluene was carried out to obtain 2,6-dimethylnaphalene, which is an important intermediate during the production of 2,6-naphthalene dicarboxylic acid. Based on our previous work using anhydrous AlC13 as catalyst, [bupy]BF4-AlC13 ionic liquids were employed to catalyze the reaction of 1,3-pentadiene with toluene. The experimental results show that [bupy]BF4-AlC13 ionic liquids are suitable for the reaction especially when the molar ratio of AlC13 to [bupy]BF4 is 1.75 1, and the reaction could proceed at the temperature as low as 0 deg C. It could be as active as pure AlC13, but much more environmentally friendly. Keywords [bupy]BF4-AlC13 ionic liquids, toluene, 1,3-pentadiene, pentenyltoluene.
ISSN:1004-9541