硝化

Results show that the yield of 1-methyl-4,5-dinitroimidazole is 62%,and the melting point is 77℃.

优化了合成工艺，讨论了4，5-二硝基咪唑的硝化机理。

In the range of the C/N ratio of 1～14, nitrate reduction mainly occurred in the growth phase of the 4～10 hour and there was minim nitrite accumulation in the process.

当C/N在1～14之间变化时，硝酸盐还原基本都发生在菌株生长的第4～10h，整个反硝化过程中亚硝酸盐浓度一直保持在极低的水平。

Goal compound synthesis namely: Take the vanillic acid as outset raw material, obtains 4- hydroxyl - 3- anisole methyl formate with the methyl alcohol reflux conditions, then after the etherification, the nitration, the return to original state, the ring closure response obtains 6- methoxy - 7- animal pen oxygen radical kui zuo lin - 4- alkone, then passes through the chlorination, the substitution aniline, to escape responses again and so on animal pen oxygen radical, etherification to obtain the goal compound; The goal compound and the diethylamine had the amine substitution reaction to obtain TM1, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(N, N- two ethyl aminos) third oxygen radical] kui zuo lin; Through zuo has the etherification with the Austria niter to respond obtains TM2, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(2- methyl - 5- nitryl imidazole) third oxygen radical] kui zuo lin.

目标化合物的合成即：以香草酸为起始原料，与甲醇回流条件下得到4-羟基-3-甲氧基苯甲酸甲酯，然后经过醚化、硝化、还原、环合反应得到6-甲氧基-7-苄氧基喹唑啉-4-酮，然后再经氯化、取代苯胺、脱苄氧基、醚化等反应得到目标化合物；目标化合物与二乙胺发生胺取代反应得到了TM1，即4-苯氨基-6-甲氧基-7-[2-羟基-3-丙氧基]喹唑啉；通过与奥硝唑发生醚化反应得到TM2，即4-苯氨基-6-甲氧基-7-[2-羟基-3-(2-甲基-5-硝基咪唑)丙氧基]喹唑啉。

The paint is composed of nito cotton, alkyd resin and any colour of pigments, plastcizer, and organic solvent.

该漆是由硝化棉、醇酸树脂及各种颜料、增塑剂和有机溶剂调制而成。

In addition, the nitration of phenol in other microemulsion systems was carried out.

此外，本课题还考察了在其它微乳体系中苯酚的选择性硝化反应。

Nitration is one of the most common and earliest organic reactions.

硝化反应是最普通和最早的有机反应之一，在有机化合物合成中居于重要地位。

Following this lead, they decided to investigate the role of nitration in one disease, Parkinson's, in more detail.

随着研究的深入，她们决定研究硝化反应在帕金森症中的作用。

It was used as the catalyst and solvent in the nitration of toluene.

并把OTf作为催化剂和溶剂，用于催化甲苯的硝化反应。

It was found that the nitration reaction has a high ortho-selectivity, and a high conversion could be achieved.

结果发现在此微乳体系中，苯酚的硝化具有明显的邻位选择性，而苯酚氧化等副反应明显减少，实现了高产率。

The effects of the reaction temperature, the ratio of fluorous phase and organic phase and the water in the reaction system on the nitration were investigated.

考察了反应温度、氟相和有机相的体积比与体系中的含水量对氟两相硝化区域选择性的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。