diazotization

Application of Tiny Crystal to the diazotization Reaction

细微结晶在重氮化反应中的应用

Special reaction conditions of diazotization on of aromatic amines

芳香伯胺重氮化的特殊反应条件

Methods RLS spectra was used to determine trace nitrite by the diazotization-coupling reaction between sulfanilic amide-N, N-dimethyl aniline-nitrite.

方法利用磺胺-N，N-二甲基苯胺-亚硝酸根间发生的重氮化-偶联反应，通过共振散射光谱法测定痕量亚硝酸根。

Methods When pH was 6.2 and temperature was 37 ℃,α naphthyl acetate was hydrolyzed by acid alpha naphthyl acetate esterase and it produced α naphthyl. Then colorimetric assay was performed with fast B salt diazotization reaction.

方法用α醋酸萘酯为底物，在37℃、pH6.2的酸性环境中经酶水解产生α萘酚，然后与重氮试剂固蓝B偶联反应显色测定。

By analyzing the diazotization, hydrolysis reaction mechanism, comparing the advantages and disadvantages of pipeline reactor and kettle-type reactor, pipeline reaction pipe designed.

通过分析重氮化、水解蒸酚反应机理，对比釜式反应器和管道化反应器的优缺点，设计出合理的管道化反应设备。

Synthesis of BGM salt from N. N-dimethylaniline by nitrosotion, reduction, diazotization is detailed.

N. N - 二甲基苯胺经亚硝化 、 还原 、 重氮等合成BGM盐.

METHODS Phenazopyridine hydrochloride was obtained by successive diazotization, coupling reaction, neutralization and salt formation, starting from aniline.

方法以苯胺为原料，经重氮化、偶合、中和、成盐得盐酸非那呲啶；

Chrysophanic acid ( 6) in total yield of 40.4% was synthesized from 3-nitrophthalic acid by dehydration, Friedel-Crafts acylation, reduction, diazotization, hydrolysis and cyclization.

以3-硝基邻苯二甲酸为原料，经脱水、傅克酰基化、还原、重氮化、水解和环合反应合成了大黄酚（6），总收率40.4%。

Application and study on resonance scattering spectra of diazotization-coupling reaction

亚硝酸根重氮化-偶联反应共振散射光谱测定

The process of technology included diazotization, diazo coupling reaction and reduction. The total yield was 60%, the purity of mesalazine ≥ 99.0%.

工艺过程包括重氮化反应、重氮耦合反应和还原反应，总收率60%，产品含量≥99.0%。

And calculated the N-acetyl H acid content with the aid of diazotization analytical method.

H酸用重氮法分析,从而计算出乙酰H酸的含量.

Study on the Spectral Characteristic of the Diazotization-Coupling with Sulfanilic Acid and Its Analytical Application

对氨基苯磺酸重氮化偶联反应的光谱特性及其分析应用

We compared the response types are good at: alkylation, oxidation, reduction, diazotization, such as halocarbons.

我们比较擅长的反应类型有: 烷基化, 氧化, 还原, 重氮化, 卤化等.

Experimental study on aniline diazotization without cooling in a spiral reactor

无冷却螺旋管式苯胺重氮化反应工艺试验研究

Synthesize saframine O using o-toluidine as primer reactant by diazotization, coupling reaction, reduction reaction, and oxidation.

研究了以邻甲基苯胺为起始原料，经重氮化、偶合、还原、氧化反应合成藏花红的方法。

Study on the Mechanism of Diazotization Coupling Reaction of Nitrite with Safranine O

亚硝酸根&番红O重氮化偶联反应机理研究

Fluorescent Whitening Agent DCB is made from P-chloroacetophenone and sulfonamide by Mannich reaction 、 diazotization 、 reduction and condensation reactions.

以对氯苯乙酮、磺胺为原料，经mannich反应、重氮化反应、还原反应和缩合反应制得荧光增白剂DCB。

It was prepared from 4-aminobenzaldehyde and 3-( 4-formylphenylazo)-4,5-dihydroxynaphthalene-2,7-disulphonic acid by diazotization, coupling reaction, yield was 52.6%.

以自制的对甲酰基苯偶氮变色酸和4氨基安替吡啉为原料，经重氮化、偶合反应制备上述目标化合物，产率为52.6%。

Hundreds of experiments were carried out on aniline diazotization in tubular reactor to study the influence of all factors on conversion, and the influence of feeding temperature was analyzed specially.

本文对管式反应器中进行的苯胺重氮化反应进行了数百次试验，研究了各因素对苯胺重氮化反应转化率的影响，并着重分析了进料温度因素的影响。

Shallowly Discusses in the Soluble Saccharin Production the Diazotization Application

浅谈糖精钠生产中重氮化反应的应用

In this paper, six kinds of special reaction conditions of diazotization of aromatic amines are discussed.

讨论芳香伯胺重氮化反应的六种特殊反应条件。

Methods 2-naphthylhydrazine was prepared from 2-naphthylamine via diazotization and reduction reactions, followed by a Fischer indole synthesis with isopropyl methyl ketone to give 1,1,2-trimethyl-1H-benz [ e] indole.

方法由2-萘胺经重氮化反应、还原反应制得2-萘肼，再与甲基异丙基酮经费歇尔吲哚合成反应制得目标化合物。

The technology and equipment for the process of side-chain chlorination , oxidation, diazotization and coupling are introduced.

介绍了 侧链 氯化 、 氧化 、 重氮化和偶合的工艺及设备.

Synthesize saframine O using o-toluidine as primer reactant by diazotization, coupling reaction, reduction reaction , and oxidation.

研究了以邻甲基苯胺为起始原料,经重氮化 、 偶合 、 还原 、 氧化反应合成藏花红的方法.

The mixed anhydride reaction and diazotization reaction were employed respectively to conjugate chloramphenicol ( CAP) with large carrier protein.

分别采用混合酸酐法和重氮化法合成氯霉素（CAP）免疫原。

Paraoxon ( E600) was conjugated to bovine serum albumin ( BSA) or tachypleus tridentatus hemocyanin ( TTH) by diazotization.

重氮化法使对氧磷（E600）与牛血清白蛋白（BSA）、血蓝蛋白偶合合成人工抗原。

METHODS Starting from 2-amino-5-methyl-pyridine, the key intermidiate 5-methyl-2 ( 1H) pyridone was obtained via the way of diazotization, hydrolysis, then it was aromatized with iodobenzene to give pirfenidone.

方法以2-氨基-5-甲基吡啶为起始原料，经重氮化、水解得到关键中间体5-甲基-2（1H）吡啶酮，再与碘苯反应得到吡非尼酮。

The mechanisms of nitration and diazotization were discussed.

讨论了硝化和重氮化反应机理。

SCR mechanism of NO_x with NH_3 in presence of steam on MnO_2/ NaY catalyst was similar to diazotization.

水蒸气存在条件下，MnO2/NaY催化剂上NH3选择催化还原NOx的反应机理类似于重氮化反应机理。

[ WT5HZ] Methods: [ WT5BZ] NO concentration in plasma was expressed with the subnitrate level that was measured by diazotization method.

方法：重氮化反应法测定血浆标本亚硝酸盐含量表示NO浓度。