查询词典 diazotization

The reducing product is monoamine and diamine with 72 % yield. Based on the characteristic of mo- noamine with strong fluorescence, this paper has analyzed the content of mo- noamine and diamine by diazotization method combined...

根据单胺具有强烈荧光的特点，采用重氮化法和荧光分光光度法相结合，测出混合胺中的单胺与双胺合量分别为22.54％和67.22％，其余是无机盐。

Keywords microreaction technology;microreactor;micro channels;fast reaction;diazotization;coupling;narrow distribution

微反应技术；微反应器；微通道；快速反应；重氮化；偶合；窄分布

Chapter two: Using 5-(4-aminophenyl)-10,15,20-triphenylporphyrin as thestarting compound, the classical diazotization of aniline and the resulting reaction ofdiazo salts were applied to porphyrin for the first time, and a series of asymmetriclysubstituted meso-tetraarylporphyrins including 5-(4-chlorophenyl)-10,15,20-triphenylporphyrin, 5-(4-iodinphenyl)-10,15,20-triphenylporphyrin, 5-(4-cyanophenyl)-10,15,20-triphenylporphyrin, 5-(4-bisphenyl)-10,15,20-triphenylporphyrin and 5-(4-hydroxylphenyl)-10,15,20-triphenylporphyrin were synthesized.

第二章：在已合成的5-(4-氨基苯基)-10，15，20-三苯基卟啉基础上，首次将芳胺的重氮化及重氮盐反应应用于卟啉，合成了5-(4-氯苯基)-10，15，20-三苯基卟啉、5-(4-碘基苯基)-10，15，20-三苯基卟啉、5-(4-氰基苯基)-10，15，20-三苯基卟啉、5-(4-联苯基)-10，15，20-三苯基卟啉和5-(4-羟基苯基)-10，15，20-三苯基卟啉等一系列不对称取代的meso-四芳基卟啉。

The appropriate temperature of diazotization was-10～-5℃,and the diazotizating fluoborate was decomposed in petroleum ether to get 2-chloro-3-fluoropyridine with 64% yield.

以2-氯-3-氨基吡啶为原料，在40%的氟硼酸溶液中，采用饱和的亚硝酸钠为重氮化剂，在-10~-5℃下进行重氮化反应制得重氮盐，在石油醚中热分解得到2-氯-3-氟吡啶，收率为64%。

The hapten was conjugated to BSA via amino diazotization linkage.

半抗原衍生物再通过重氮化反应与BSA偶联。

The results revealed that the conversion was 92.4% when aniline concentration was 1 mol/L, feeding temperature was 25℃ and residence time was 11 s. With feeding temperature being the main factor, the effect of residence time decreases successively. The diazotization anomalies could be caused at aniline concentration above 1.5 mol/L. The proper feeding temperature which can lead to the highest conversion was 20~30℃.

试验结果表明，在苯胺浓度为1 mol/L，进料温度为25℃，停留时间为11 s时反应转化率达92.4%；苯胺浓度、进料温度、停留时间对反应影响程度各不相同，其中进料温度的影响最大，停留时间次之，苯胺浓度高于1.5mol/L后，对反应影响加剧，导致反应异常；从进料温度对反应的影响试验分析可得，反应转化率最高的进料温度在20~30℃之间。

Thenew route has some advantages such as simple operation, inexpensive materials andbetter yield compare to other synthesis routes.The synthesis route is showed as follows. First,-2-chloro-3-phenylpropionic acid is synthesized from L-phenylalanine by diazotization.

在参考大量文献的基础上，我们设计了一条新的合成路线，和其它合成路线相比较本路线具有操作简单、原料易得、收率较高等优点。

Use nitrite and the Sulfanilic acid diazotization in acidic conditions,with dinitroaniline coupling formation color reaction,established the method of using the color reaction Determination Chinese cabbage s Nitrite content.

在酸性条件下亚硝酸盐与对氨基苯磺酸重氮化后，再与盐酸萘乙二胺偶合形成颜色反应，建立了用比色法测定大白菜中亚硝酸盐的方法。

Palladium nanoparticles were crystallized on 4-aminobenzoic acid monolayer-grafted multi-walled carbon nanotubes by diazotization.

本工作中在水溶液体系中以芳烃重氮盐修饰的多壁碳纳米管为载体构筑了钯纳米粒子碳纳米管复合结构。

Syntheses of Curing Agent Modified Dicyandiamide by m-Toluidine;2. The diazotization and hydrolysis process was used to synthesize high-purity m-cresol using m-toluidine as the main material.

间甲酚是一种重要的精细化工中间体，以间甲苯胺为原料，采用重氮化-水解法制备高纯度间甲酚，通过正交实验和单因素实验对重氮化反应工艺条件进行了优化。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷