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Molecules 2005, 10(8), 978-989; doi:10.3390/10080978

Synthesis and Characterization of Nitro-p-xylenes

1, 1,* , 1, 1 and 2
1 State Key Laboratory of Prevention and Control of Explosion, Beijing Institute of Technology, P. R. China 2 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 / Revised: 23 April 2005 / Accepted: 25 April 2005 / Published: 31 August 2005
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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 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.

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