paranitrotoluene

例句：

1. 1. The compound was synthesized using the method of refluxingand distillation.
   该化合物通过回流和蒸馏的方法合成。
2. 2. The product is used as asolvent in the synthesis of pharmaceuticals.
   该产品作为医药合成的溶剂使用。
3. 3. The reaction mechanism involves the interaction betweenthe nitro group and the aromaticring.
   反应机制涉及硝基与芳香环之间的相互作用。