三硝基

We found that when acetone was used as solvent, in the presence of TFA, cis-4-pyrrodin-1-yl-L-proline could catalyze the direct asymmetric aldol reaction between acetone and 4-nitrobenzaldehyde with 84% ee.

研究发现，该催化剂以丙酮为溶剂时，加入催化剂等当量的三氟乙酸可以较好的催化丙酮与对硝基苯甲醛之间的直接不对称Aldol反应，得到84%的ee值。

In the reaction of substituted arylamine and sulfuric acid, and utilizes the feature of that said inert organic solvent is easy to form azeotrope with water to continuously deliver the water produced in the couse of reaction from the reactor.

本发明在取代芳胺与硫酸的反应中加入了一种惰性的有机溶剂，如：氯苯，二氯苯，三氯苯，硝基苯等，利用其易与水形成共沸物的特点，将反应生成的水不断地导出反应器。

In part three, the absorption spectral behavior of binding reaction of cuprum- p-nitro-chlorophosphonazo Cu(Ⅱ-CPA-pN complex on bovine serum albumin was investigated.

第三部分：研究了蛋白质与Cu与对硝基偶氮氯膦的相互作用，发现蛋白质的加入能使配合物溶液的紫红色褪为紫色。

The solvent extraction of Am and Cm from picric acid solution by nitrobenzene solution of N, N, N', N'-tetraphenyl-3,6-diox'aoctane diamide was investigated and compared with the extraction of cerium, neodymium and europium.

本文研究了三甘酰双的硝基苯溶液从苦味酸溶液中萃取Am和Cm的性能，并与Ce，Nd和Eu的萃取进行了比较。

Methods of Antibacterial Test in Vitro and in Vivo2 4 Dinitrophenol Induced Fever in Rats, Perspiration on Rat Feet, Permeation of Capillary Vessel in Mice, Foot Swelling in Rats, Clearance of Carbon Particles in Mice were used to study the actions of anti bacteria, antipyretic, diaphoresis , anti inflammation and immunity regulation This product inhibited, to some extent, the staphylococcus aureus.

采用体内、外抗菌法；大鼠 2 ，4—二硝基苯酚致热法；大鼠足跖汗液着色法；小鼠毛细血管通透法；大鼠足跖肿胀法及小鼠碳末廓清法观察复方三效微型灌肠剂的抗菌、解热、发汗、抗炎、免疫调节等作用。

That is to say it has some advantages of fast burning velocity, more gases products, lower burning temperature, little solid draff, low toxicity.

研究发现，3-硝基-1，2，4-三唑-5-酮氨基胍具有良好的产气性质，表现为燃烧速度较快、产气量较大、燃烧温度低、固体残渣少、所释放的气体毒性小等优点，而且它还具有较低的感度和较好的热稳定性。

Optimized geometries of these compounds show that they have not imaginary frequeneies, and they are stable on the potential energy surface. The results show that the ring of imidazole has some aromaticity.

基于自然键轨道理论和三维静电势图，分析了稳定结构的成键情况、咪唑环上的共轭性及硝基咪唑化合物的反应性。

N-Methyl-3,3-dimethyl spiroindoline-2,3'[3H] naphthaline [2,1-b] [1,4] oxazine was synthesized by 1,3,3-trimethyl-2-methylene indoline and 1-nitroso-2-naphthol, its UV and IR spectra and elemental analysis were carried out, and the photochromism and main influencing factors such as temperature, solvent and pH were studied.

以1，3，3-三甲基－2-亚甲基吲哚啉和1-亚硝基－2-萘酚为原料合成了N-甲基－3，3-二甲基螺吲哚啉-2，3'[3H]萘并[2，1-b][1，4]恶嗪，对其进行了紫外和红外光谱以及元素分析，并对其光致变色性质以及主要影响因素温度、溶剂和pH进行了研究。

The excess molar volumes V~E of {trichloromethane +1,3,5_ trimethylbenzene ,trichloromethane + 1,2,4_ trimethylbenzene ,nitrobenzene + 1,3,5_ trimethylbenzene ,nitrobenzene + 1,2,4_ trimethylbenzene } were determined in the whole range of composition using a vibrating_tube densimeter at 298\^15 K.

在298 15K下，用振动管密度计在全浓度范围内测量了氯仿、硝基苯分别与均三甲苯、偏三甲苯构成的二元液体混合物的过量摩尔体积VE。

In this study, three methods were used to extract sugar from cotton fibre.

分别用这三种方法提取棉纤维中的糖分，并用蒽酮硫酸法测定可溶性总糖、用二硝基水杨酸法测定还原糖来评价这三种提取方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。