环化

huán huà
  • cyclizing
环化环化
环化[huán huà]
  1. 所使用的缩合剂为无水醋酸钠,环化剂为氯化物。

    Anhydrous sodium acetate is used as condensating agent . Cyclizing agents used are benzene chloride , oleum and so on .

  2. 假性紫罗兰酮的环化反应,假性紫罗兰酮的转化率为99.37%,β-紫罗兰酮的合成及精制收率分别为95.14%和73.55%,环化工段总收率为69.98%。

    In the period of cyclizing reaction of pseudoionone , conversion of pseudoionone , synthetic and refined yield of ionone were 99.37 % , 95.14 % and 73.55 % respectively . Total yield of cyclizing reaction was 69.98 % . 3 .

  3. 鸟苷酸环化酶C及尾型同源盒转录因子-2在胃腺癌中的研究进展

    Research progress of GC-C and CDX-2 in the gastric adenocarcinoma

  4. DNA分子的环化是研究其本身柔韧性的主要方法。

    The major process to study DNA instinctive flexibility is DNA cyclization assay .

  5. 鸟苷酸环化酶C研究进展

    Progression of guanylyl cyclase - C

  6. 大肠癌患者外周血中鸟苷酸环化酶C的表达及其意义

    Expression of guanylyl cyclase C mRNA in peripheral blood from patients with colorectal cancers and its significance

  7. Fe(0)催化三氯乙酸烯丙酯的环化反应研究

    Fe ( 0 ) - Catalyzed Radical Cyclization Reaction of Allyl Trichloroacetate

  8. NAD(P)H模型引发的还原环化2,2-双取代1,2-二氢茚的合成

    Reductive Cyclization Initiated by an NAD ( P ) H Model Synthesis of 2,2-Disubstituted Indanes

  9. PAN分子环化行为对纤维结构及性能的影响

    Effect of the molecular cyclization on the structure and properties of polyacrylonitrile fibers

  10. 生育酚环化酶(TC)是维生素E生物合成途径中的关键酶。

    Tocopherol cyclase ( TC ) is a key enzyme for plant vitamin E biosynthesis .

  11. 缺血心肌细胞膜β肾上腺素能受体、腺苷酸环化酶和cAMP水平的放射配基分析

    Radioligand Assay on β - adrenoreceptor , AC and cAMP Levels During Myocardial Ischemia

  12. 缺血/再灌注小鼠海马组织cAMP和腺苷环化酶mRNA水平的变化

    The changes of camp and adenylyl cyclase mRNA level in hippocampus of mice with ischemia / reperfusion

  13. 胡萝卜茄红素β-环化酶cDNA的分离及其在肉质根中的差异表达

    Isolation of Lycopene β - Cyclase cDNA from Daucus carota and Its Differential Expression in Roots

  14. PAN预氧化纤维在N2气氛中的热解可以分为低温区的环化脱氢和高温区的交联重排两个阶段;

    The pyrolysis of PAN pre-oxidized fiber under nitrogen atmosphere comprised cyclo-dehydrogenation at low temperatures and crosslinking rearrangement at high temperatures .

  15. 实时荧光定量PCR检测大肠癌患者外周血鸟苷酰环化酶C基因及其临床意义

    Real-time fluorescence quantitative reverse transcription PCR in determination of guanylyl cyclase-C gene expression in peripheral blood of patients with colorectal cancer and its clinical significance

  16. 发育因素影响心肌β-AR对腺苷酸环化酶的调节。

    The developmental factors exert effect on the β - AR modulation of adenylate cyclase in rat myocardium .

  17. 其抗血小板聚集作用可能与激活血小板膜系统的腺苷环化酶,提高血小板内cAMP有关。

    It suggested that a raise of platelet cAMP level might be the mechanism of antiplatelet effect of AP .

  18. 这个方法包括Cu催化的三组分反应,Lewis酸催化的电环化反应以及脱氢反应。

    The sequential reaction involves a copper-catalyzed three-component reaction , a Lewis acid catalyzed electrocyclic reaction and a dehydrogenation .

  19. LMo(CO)5-TiCl4催化体系对己烯的环化作用

    Cyclization of hexene over lmo ( co ) _5-ticl_4 catalyst system

  20. 论文研究内容主要分为三部分:1.开发了金属Ni催化的非活化1,6-烯炔类化合物的还原环化反应。

    It mainly consists of the following three parts : 1 . The nickel-catalyzed reductive cyclization of unactivated 1,6-enynes has been developed .

  21. 利用这一特点,使用与ST连接的纳米颗粒结合近红外线或无线电频率能量吸收热烧蚀术,使得鸟苷酸环化酶C成为了转移瘤消融的一个潜在靶。

    This makes GCC a potential target for metastatic tumor ablation using ST-bound nanoparticles in combination with thermal ablation with near-infrared or radiofrequency energy absorption .

  22. 脱水环化:乙酸酐,回流,2h,97%。

    Cyclization : acetic anhydride , reflux , 2 h , 97 % .

  23. 腺苷及其受体诱导细胞凋亡的机制主要涉及腺苷酸环化酶(AC)、cAMP、Ca2+等。

    The proapoptotic mechanisms of adenosine and its receptors are involved in Adenylyl cyclase ( AC ), cAMP , Ca 2 + , etc.

  24. 通过对红外光谱、1H-NMR谱的初步解析,证实了环化反应的发生。

    The occurrence of SBR cyclization was confirmed by the primary analysis of IR and 1 H-NMR spectra .

  25. 硫酸根促进的纯硅MCM-41催化假性紫罗兰酮环化合成紫罗兰酮的性能

    Catalytic Performance of Sulfated Silica MCM-41 for Cyclization of Pseudoionone to Ionones

  26. Dex对血小板钙调素(CaM)和腺苷酸环化酶(AC)活性,以及对cAMP和cGMP的生成均无明显影响。

    The activity of CaM and AC , the production of cAMP and cGMP were not affected by Dex .

  27. 原核微生物的环化AMP及其某些生理功能

    Cyclic AMP in Prokaryotes and its Physiological Functions

  28. 研究了ASP型固体酸催化剂一缩乙二醇(二甘醇)环化脱水合成1,4-二氧六环的液相反应。

    The method of liquid phase synthesis of dioxane from the cyclodehydration of diethylene glycol catalyzed by ASP-type solid acidic catalysts was studied .

  29. 石斑鱼垂体腺苷酸环化酶激活多肽和生长激素释放激素基因的cDNA克隆及表达分析(英文)

    Sequence and Expression of a cDNA Encoding Both Pituitary Adenylate Cyclase Activating Polypeptide and Growth Hormone-releasing Hormone in Grouper ( Epinephelus coioides )

  30. 目的探讨环化酶激活剂(前列腺素E1、腺苷及Zn2+离子)对周围神经损伤后感觉神经元的保护作用。

    To observe the protective effect of cyclase activator on sensory neurons after peripheral nerve injury .