重氮化

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  • diazotization
重氮化重氮化
  1. 分别采用混合酸酐法和重氮化法合成氯霉素(CAP)免疫原。

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

  2. 以纤维素为载体,通过重氮化法固定葡萄糖淀粉酶,研究了PH及加酶量对酶固定化的影响;

    With Cellulose as a carrier , the research is conducted into PH and the effects of addition of enzyme amount on fixation of enzyme through glucoamylase fixed by diazotization method ?

  3. 通过苯胺与7-乙酰氨基-4-羟基-2-萘-β-(N,N-二甲基氨乙基)磺酰胺的重氮化偶合反应合成了双偶氮染料。

    Diazo dye were prepared by the diazo coupling reactions of aniline and 7-acetamide-4-hydroxy-2-naphthalene - β - ( N , N-dimethylaminoethyl ) sulfonamide .

  4. 酸性黄是经过重氮化和偶合反应合成的一种偶氮染料,对它进行了IR、1H-NMR和元素分析的表征。

    An acid yellow was synthesized by diazo and azo , and characterized by elementary analysis , IR and 1H-NMR .

  5. 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。

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

  6. 利用GRIESS反应做重氮化法含量测定内指示剂的研究

    Application of the Griess reaction in the study of internal indicator for diazotization determination

  7. 以内毒素标准品为参考标准,采用当显色基质重氮化法测定牙周病优势菌LPS的鲎活性当量。

    The limulus lysate activity of LPS preparations were measured by the limulus chromo-genic diazotic assay and was calculated according to their correspondent reference test with standard endotoxin .

  8. 采用重氮化法将CL直接与BSA、OVA共价偶联,制备人工抗原Ⅱ(CLBSA)和包被原Ⅱ(CLOVA)。

    CL was diazotized to be conjugated with BSA and OVA to prepare artificial antigens II ( CL-BSA ) and coating antigen II ( CL-OVA ) .

  9. 为提高由p-氨基苯甲醚经重氮化制备p-羟基苯甲醚的反应产率,利用超声震荡法制备了纳米Cu2O催化剂。

    To increase the synthesis product ratio of p-hydroxyanisole derived from p-anisidine by diazotization , Nano-Cu_2O catalyst was prepared by ultrasonic vibration method .

  10. 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。

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

  11. 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。

    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 .

  12. 其中对重氮化反应的温度,及由重氮盐还原成对一磺酰胺基苯肼时还原介质的PH值和亚硫酸钠用量等对反应及产率的影响。

    The effect of the factors , such as the temperature of diazotizing reaction , the PH value of the reaction medium during the reduction of diazonium salt to p-sulfonamido phenylhydrazines and the amount of sodium suifite , on the reaction and production is discussed .

  13. 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。

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

  14. 然后再以合适的芳胺经重氮化反应偶合到PVK的活性亚甲基上,合成出类汉沙黄颜料。

    Appropriate aromatic amines were diazotized and coupled with the active methylene of the PVK to give a group of yellow pigments , which have the similar properties with Hansan Yellow dye .

  15. 邻氨基苯甲酸在-5~-2C於氟化氢中直接重氮化,后将重氮盐於80C分解,产生邻氟苯甲酸。

    Direct diazotisation of anthranilic acid at 5 ~ 2 ℃ in the presence of hydrogen fluoride , followed by decomposition of the diazonium fluoride at 80 ℃, gave o-fluorobenzoic acid .

  16. 将SephadexG-200与β-硫酸酯乙砜基苯胺(SESA)首先醚化制备对氨基苯砜乙基交联葡聚糖(ABSE-SephadexG-200),然后经重氮化固定无花果蛋白酶。

    Sephadex G-200 and ( P. β - Sulphatoethylsulphonyl ) anine ( SESA ) were first etherified to prepare p-aminobenzene sulphone ethyl ( ABSE ) - Sephadex G-200 and then , ficin was fixed on ABSE-Sephadex G-200 by means of diazo-reaction .

  17. 无冷却螺旋管式苯胺重氮化反应工艺试验研究

    Experimental study on aniline diazotization without cooling in a spiral reactor

  18. 重氮化法测定胆汁及血清总胆红素的含量;

    The levels of serum and bile bilirubin were determined .

  19. 亚硝酸根重氮化-偶联反应共振散射光谱测定

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

  20. 详细的分析了冰醋酸在重氮化反应中的溶剂效应。

    The solvent effect of anhydrous acetic acid was described in detail .

  21. 聚甲基丙烯酸乙基咔唑酯后重氮化的研究

    Study on Post Diazotization of Polymethyl Acrylic Ethyl Carbazole Ester

  22. 浅谈糖精钠生产中重氮化反应的应用

    Shallowly Discusses in the Soluble Saccharin Production the Diazotization Application

  23. 邻甲酰氨基苯甲酰胺类农药研究概述邻甲苯胺重氮化-水解制备邻甲酚工艺改进

    Improved on process of synthesizing o-cresol by diazotization and hydrolysis of o-toluidine

  24. 讨论了硝化和重氮化反应机理。

    The mechanisms of nitration and diazotization were discussed .

  25. 亚硝酸根&番红O重氮化偶联反应机理研究

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

  26. 芳香伯胺重氮化的特殊反应条件

    Special reaction conditions of diazotization on of aromatic amines

  27. 反应经环合、重氮化、缩合得目标产物。

    Then the final product was obtained through the cyclization , diazotization and condensation .

  28. 该技术在重氮化、偶合反应中的应用,取得了高于常规反应器的收率和纯度。

    Improved yield and selectivity are observed while applying this technology on diazo-coupling reactions .

  29. 重氮化与偶合反应的理论研究

    Research in Theory of Reoxidation and Coincidence Reaction

  30. 细微结晶在重氮化反应中的应用

    Application of Tiny Crystal to the diazotization Reaction