Synthesis and Characterization of Nitro-p-xylenes

Molecules

Liu Yan-Hong¹  Zhang Tong-Lai¹  Zhang Jian-Guo¹  Guo Jin-Yu¹ 

[1] State Key Laboratory of Prevention and Control of Explosion, Beijing Institute of Technology, Beijing 100081, P. R. China, Tel: [phone], Fax: [phone]

关键词: p-Xylene;    Nitration;    Thermal Analysis;   

DOI  :  10.3390/10080978

来源: mdpi

【 摘 要 】

In this paper we elected to nitrate p-xylene because this compound has only one mononitro- and trinitro- isomer. Trinitro-p-xylene was used as a starting material for the synthesis of other compounds in subsequent work. The mononitration of p-xylene can be easily carried out at 30°C. Nitro-p-xylene is easily nitrated to dinitro-p-xylene at a temperature of 80°C. The trinitro-p-xylene can be obtained at 120°C. Single crystals of 2,3-dinitro-p-xylene and 2,3,5-trinitro-p-xylene were grown using the slow cooling method and we report the X-ray structure of the former. The thermal decomposition of the compounds was studied using differential scanning calorimetry (DSC) and thermogravimetry-derivative thermogravimetry (TG-DTG) techniques and FT-IR. The target compounds were also characterized by ¹H-NMR, ¹³C-NMR and MS.

【 授权许可】

Unknown   
© 2005 by MDPI (http://www.mdpi.org).