研究了以无水氯化钙为催化剂在中性条件下合成2， 4- 二硝基苯腙的新方法。
A new route for preparing 2,4-dinitrophenylhydrazones by treating aromic aldehydes or alkane ketones and 2,4-dinitrophenylhydrazines with anhydrous calcium chloride as a catalyst.
研究发现，在盐酸介质中，痕量邻二硝基苯能灵敏地阻抑高碘酸钾氧化中性红褪色。
In HCl medium, trace o-dinitrobenzene can sensitively inhibit the discoloration reaction of neutral red oxidized by KIO4.
用2,4 -二硝基苯胺为原料，在混合溶剂中进行部分还原，得到对硝基邻苯二胺。
The starting material 2, 4-dinitroaniline was partially reduced in a mixed solvent to afford 4-nitro-1, 2-phenylenediamine.
含有吸电子基团的二硝基苯类化合物反应活性明显高于含有供电子基的二硝基化合物的加氢反应；
The dinitrobenzene with electron-withdrawing group can be hydrogenated much easier than the dinitrobenzene with electron-donating group.
介绍了铁炭微电解-PACT法处理间二硝基苯生产废水的工艺流程、调试、运行情况，在进水COD为4。
The process, test and operation of nitrobenzene production wastewater treatment by Fe-charcoal min-electrolysis and PACT technology is addressed, when the input wastewater COD is 4.
这些加成物的结构是借在酸性介质中与2,4 -二硝基苯肼作用生成相应酮的2,4 -二硝基苯腙而得到证明。
The structure of these adducts was proved through the reaction with 2, 4-dinitrophenylhydrazine in acidic medium, yielding the 2, 4-dinitrophenyl-hydrazone of the corresponding ketone.
本文报告在使用间二硝基苯和氯气的生产过程中发生爆炸，导致多发伤害和急性全身性化学物中毒，5例发生MOF死亡。
Complex injuries and acute systemic chemical poisoning caused by exposure to the explosion during the use of M-dinitrobenzene and chlorine were reported and 5 cases of MOF developed death.
结论3，5 二硝基苯甲酰氧基作为良好的糖端基离去基用于寡糖的合成，具有反应条件温和、收率较高、立体选择性好的特点。
Conclusion The 3, 5-dinitrobenzoyl group was found to be a good leaving group at the anomeric position and O-glucopyranosides and oligosaccharides were stereoselectively synthesized in good yield.
本文简要说明了这种仪器的原理、结构和特征，并给出了制备分离甾族反应混合物、吲哚类植物激素、二硝基苯氨基酸的应用结果。
In this paper, the results of preparative separations of steroid reaction pro-ducts, indole auxins, and DNP amino acid mixture with suitable two-phasesolvent systems is introduced.
本文简要说明了这种仪器的原理、结构和特征，并给出了制备分离甾族反应混合物、吲哚类植物激素、二硝基苯氨基酸的应用结果。
In this paper, the results of preparative separations of steroid reaction pro-ducts, indole auxins, and DNP amino acid mixture with suitable two-phasesolvent systems is introduced.
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