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Synthesis and Characterization of Nitro-p-xylenes
State Key Laboratory of Prevention and Control of Explosion, Beijing Institute of Technology, P. R. China
Center of Analysis and Test of Chengdu Branch, Chinese Academy of Sciences, P.R. China
* Author to whom correspondence should be addressed.
Received: 25 January 2004; in revised form: 23 April 2005 / Accepted: 25 April 2005 / Published: 31 August 2005
Abstract: In this paper we elected to nitrate p-xylene because this compound has onlyone mononitro- and trinitro- isomer. Trinitro-p-xylene was used as a starting material forthe synthesis of other compounds in subsequent work. The mononitration of p-xylene canbe easily carried out at 30°C. Nitro-p-xylene is easily nitrated to dinitro-p-xylene at atemperature of 80°C. The trinitro-p-xylene can be obtained at 120°C. Single crystals of2,3-dinitro-p-xylene and 2,3,5-trinitro-p-xylene were grown using theslow cooling method and we report the X-ray structure of the former. The thermaldecomposition of the compounds was studied using differential scanning calorimetry(DSC) and thermogravimetry-derivative thermogravimetry (TG-DTG) techniques andFT-IR. The target compounds were also characterized by 1H-NMR, 13C-NMR and MS.
Keywords: p-Xylene; Nitration; Thermal Analysis
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Yan-Hong, L.; Tong-Lai, Z.; Jian-Guo, Z.; Jin-Yu, G.; Kai-Bei, Y. Synthesis and Characterization of Nitro-p-xylenes. Molecules 2005, 10, 978-989.
Yan-Hong L, Tong-Lai Z, Jian-Guo Z, Jin-Yu G, Kai-Bei Y. Synthesis and Characterization of Nitro-p-xylenes. Molecules. 2005; 10(8):978-989.
Yan-Hong, L.; Tong-Lai, Z.; Jian-Guo, Z.; Jin-Yu, G.; Kai-Bei, Y. 2005. "Synthesis and Characterization of Nitro-p-xylenes." Molecules 10, no. 8: 978-989.