Title: Studies on the Preparation of 1-Benzyl-2-pyrrolidone
Abstract: 1-Benzyl-2-pyrrolidone was prepared by the reaction of γ-butyrolactone and benzylamine catalyzed by phosphoric acid. Factors influencing on the reaction were studied and the optimum reaction conditions were as follows: n(γ-butyrolactone)∶n(benzylamine)∶n(phosphoric acid)=1.0∶1.5∶0.1,reaction temperature was 180~210℃ and reaction time of 2h. The product was purified by distillation under reduced pressure, the residue remained after distillation could be used as catalyst in circulation. The yield of title compound was 91.6% and content of 1-benzyl-2-pyrrolidone was 99.3%. The final product was confirmed by elementary analysis, IR and 1HNMR.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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