查询词典 tris nitro-methane

In this paper, a new kind of bonded organic/inorganic hybrid NLO materials containing P-Nitro aniline was synthesized through sol-gel process by using alkoxysilane dye containing P-Nitro aniline and tetraethylorthosilicate as reactants.

以含对硝基苯胺生色团的烷氧基硅烷染料和正硅酸乙酯为原料，通过溶胶-凝胶法合成了含对硝基苯胺生色团的键合型有机/无机复合非线性光学材料。

The results show that: for 0.05 mol p-Nitro anisole, the reaction medium is isopropanol, the temperature 70℃, the mole scale n(p-Nitro anisole):n=1:4, the reaction time 130 min and the yield 88.45%.

结果表明：对0.05mol的对硝基苯甲醚，反应介质为异丙醇，反应温度为70℃，物料比为n：n=1：4，反应时间为130min，产率为88.45%。

Some materials were synthesized in this paper at first, 1-nitro-2-pentanol was synthesized with nitromathane and butyraldehyde and the yield was 70.2%; l-nitro-2-pentanol was reduced to 1 -amino-2- pentanol with iron and the yield was 65.2%.

分别用氢氧化钠、三乙胺为缚酸剂，2-氨基-1-丁醇、1-氨基-2-戊醇、环己酮和二氯乙酰氯为原料，采用一步法和分步法合成了两种潜在除草剂安全剂。

Through making industrial experiment of zinc nitrate with existing equipments,the industrial experiment s of calcium ammonium nitrate and nitro-composite fertilizer show that the production of a calcium ammonium nitrate and nitro-composite fertilizer exist many problems,and so it is need to improve the process and increase equipments.

通过在现有装置上进行的四硝酸锌工业试验、硝酸铵钙工业试验和硝基复合肥的工业试验研究表明，硝酸铵钙和硝基复合肥的生产都存在许多问题，需要改进现有工艺和增加许多设备。

With 2-cyano-4-nitro-aniline as raw material, 2-cyano-4-nitro-6-halogen- anilines have been prepared by direct halogenation.

以2-氰基-4-硝基苯胺为原料，用直接卤化法研制成2-氰基-4-硝基-6-氯苯胺、2-氰基-4-硝基-6-溴苯胺、和2-氰基-4-硝基-6-碘苯胺。

However, the synthetic potential of plant cells as a reducing agent of the nitro group has never been discovered, despite the fact that the reduction of nitro compounds is one of the most classical reactions in organic synthesis.

然而尽管硝基还原是最为经典之一的有机反应，在有机合成上还没有使用植物细胞还原芳香硝基化合物的报道。

The hydroxy and nitro-substituted coumarins were able to inhibite hemolysis of human red blood cells and damage of DNA induced by AAPH. It reveals that these compounds are effective antioxidants. Some coumarins have cytostatic and cytotoxic activity for HL-60 cell lines. In general, their effects were weakened when coumarins own nitro group.

含有羟基和硝基的香豆素衍生物对自由基诱导的人血红细胞溶血有一定的抑制作用，且对AAPH诱导的DNA损伤有不同程度的保护作用，部分香豆素衍生物对人早幼粒白血病细胞（HL-60）的增殖表现出一定的抑制作用。

In conclusion, the nitro group is the main toxic group for both nitrobenzenes and nitroanilines. Wrapping or reducing the nitro groups will decrease the toxicity of the subject chemicals.

总之， 硝基是这两类化合物致毒的主要基团，将硝基包覆或还原为氨基应为此类化合物解毒的重要途径。

amino-1,4-naphthoquinones failed to be obtained through the classical routes due to the strongly electron-withdrawing nitro group, which deactivating the nucleophilic ability of the nitro anilines.

2-硝基苯胺-1，4-萘醌类衍生物由于硝基的强吸电性使硝基苯胺的亲核性减弱，不能通过经典的加成-氧化或加成-取代的方法合成得到。

Nitrations of both hydroxyl- and acetamino-substituted porphyrins were found to take place at the adjacent position of the substituent in the very aryl ring, whereas nitro group was guided into para positions of unsubstituted phenyl ring during the nitration of nitro-substituted porphyrin.

结果表明，羟基和乙酰氨基卟啉的硝化反应发生在与该取代基处于同一芳环的meta位，而硝基卟啉进行硝化时，硝基取代于其他未取代苯环的para位。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。