Trinitro derivatives of o- and p- xylenes

Ortho- and p- xylene nitrate more readily than m- xylene. They are also more readily oxidized especially during mononitration as well as during vigorous nitration to trinitro derivatives. For this reason the yields obtained in the nitration of o- and p- xylene are lower than those obtained with m- xylene. 

The following mononitro derivatives are known 4-nitro- and 3-nitro-o-xylene and 2-nitro-p-xylene  

Among dinitro derivatives of p- xylene the following three isomers are known 2,3-, 2,6- and 2,5-dinitro-p-xylene  

At first o- xylene was believed (Noelting and Thesmar [16]) to be without trinitro derivatives, until Crossley and Renouf [17] obtained a trinitro compound, 

Later these observations were confirmed by Marqueyrol and Loriette [9], From 100 parts of o- xylene, 130-135 parts of trinitro derivatives are obtained. 

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The solubility of the trinitro derivatives of o- and p- xylene in various solvents is higher than that of trinitro-m-xylene. Here are the comparative data on the solubilities in 100 ml of 95% alcohol at 8°C (after Kravchinskii [3]) ... 

Mononitro derivatives of o- and p-xylenes Dinitro derivatives of o- and p-xylenc Trinitro derivatives of o- and p-xylene Manufacture of trinitroxylene (TNX)... 

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