Reaction of Phthalic Anhydride and Ethylenediamine
Qun-Zheng Zhang
College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, Shaanxi Province, P.R. China ; School of Engineering Sciences, University of Southampton, Southampton SO17 1BJ, UK
Chang-Chun Li
College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, Shaanxi Province, P.R. China
Xue-Fan Gu
College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, Shaanxi Province, P.R. China
Peng-Hui Yang
College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, Shaanxi Province, P.R. China
Xunli Zhang
School of Engineering Sciences, University of Southampton, Southampton SO17 1BJ, UK
Corresponding Author(s) : Qun-Zheng Zhang
qzzhang@xsyu.edu.cn
Asian Journal of Chemistry,
Vol. 23 No. 7 (2011): Vol 23 Issue 7
The reactions of phthalic anhydride and ethylenediamine were performed and the effect of solvents was investigated with a wide range of solvents in two groups (either containing H2O or without H2O). In H2O-containing media, phthalic ethylene ammonium salt was obtained with high yields; when the reaction was carried out in non-aqueous solvents, N,N'-diphthaloyl-1,2-ethylenediamine was formed at lower reaction rates and yields. All products were characterised and confirmed by a combination of analytical techniques. The use of water as solvent with a reasonably high product yield (80 %) suggests a green route for the synthesis of phthalic ethylene ammonium salts.
