羟基香豆素

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  • Hydroxycoumarin;hydroxy coumarin
羟基香豆素羟基香豆素
  1. 采用改良的西佛碱水解法和Lossen重排法合成了3氨基香豆素与3羟基香豆素,产率51%~80%。

    Aminocoumarin and 3_ hydroxycoumarin were synthesized by an improved method and Lossen rearrangement ( yields 51 % ~ 80 % ) .

  2. 以高荧光量子产率的7-羟基香豆素为荧光团,组氨酸甲酯为金属离子配体,Ni2+为荧光淬灭剂,利用IDA的荧光传感机理,设计合成了高灵敏性、选择性的组氨酸荧光探针:H3。

    On the basis of high quantum yield fluorophore , 7-hydroxycoumarin , histidine methyl ester as the ligand for metal ion , and Ni2 + as the fluorescence quencher , a highly sensitive and selective fluorescent sensor for histidine has been designed and synthesized , using the IDA mechanism .

  3. 4-甲基-7-羟基香豆素的发光特性研究

    Luminescence Properties of 4 - Methyl - 7 - hydroxy - coumarin

  4. 1,1-二取代炔丙醇氯代产物与4-甲基-7-羟基香豆素的异常缩合产物

    Unusual Products from the Reaction of Chlorides of 1,1-Disubstituted Propargyl Alcohols with 4-Methyl-7-hydroxycoumarin

  5. 新型4-羟基香豆素衍生物的微波合成及其光谱性质

    Microwave-induced Synthesis and Spectral Properties of New 4-Hydroxycoumarin Derivatives

  6. 水介质中α,α-双(4-羟基香豆素-3-基)甲苯的洁净合成

    Clean Synthesis of α,α - Bis ( 4-hydroxycoumarin-3-yl ) toluene in Aqueous Media

  7. 环糊精增敏4-羟基香豆素荧光法测定痕量亚硝酸盐

    Fluorometric Determination of Trace Nitrite With 4-Hydroxycoumarin by β - Cyclodextrin Enhanced Method

  8. 反-头对头7-羟基香豆素二聚体的合成及其旋光异构体的拆分

    Synthesis and Recemic Resolution of Anti Heard-to-head 7-hydroxycoumarin Dimer

  9. 对于6,7-二羟基香豆素的6位羟基具有较高的磷酰化选择性。

    For the6,7-dihydroxy coumarin , there was selective phosphorylation in the6-hydroxyl group during the reaction .

  10. 4-羟基香豆素衍生物的荧光性能

    Synthesis and Fluorescent Properties of Coumarin Derivatives

  11. 对比考察了多种溶剂介质中不同浓度4-甲基-7-羟基香豆素溶液的荧光光谱特性。

    The fluorescence spectra of the 4-methyl-7-hydroxy-coumarin ( coumarin-4 ) solutions in various solvents are studied .

  12. 4-羟基香豆素-1,4-萘醌的合成

    Synthesis of 4-Hydroxy Coumarin-1,4 - naphthaquinone

  13. 4-乙氧基-7-羟基香豆素及其衍生物的合成

    Synthesis of 4-ethoxy-7-hydroxycoumarin and its derivatives

  14. 微波辐射下氨磺酸催化水相合成3,3-亚芳基双(4-羟基香豆素)脱氧胞苷酸羟甲基化酶

    Synthesis of 3,3-Arylidene Bis ( 4-hydroxycoumarin ) Catalyzed by Sulfamic Acid in Aqueous Media under Microwave Irradiation

  15. 以间甲酚为原料,经两步反应合成4-羟基香豆素-1,4-萘醌,总收率20.9%。

    Hydroxy coumarin-1,4-naphthaquinone was synthesized from m cresol via 2 steps . The overall yield was 20.9 % .

  16. 基于溶剂本身的性质及4-甲基-7-羟基香豆素在氢键溶剂中的二聚作用讨论了这种现象。

    These phenomena have been discussed on the basis of solvent properties and dimerisation of coumarin-4 in hydrogen bonding solvents .

  17. 概述了4羟基香豆素的合成方法,重点介绍了苯酚法,乙酰水杨酸法,水杨酸甲酯法,邻羟基苯乙酮法。

    The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol , 2-acetylsalicylic acid , methyl salicylate , and o-hydroxyacetophenone respectively .

  18. 在微波辐射下,不需任何催化剂,芳醛、4-羟基香豆素在水中的反应。反应得到一系列α,α-双(4-羟基香豆素-3-基)甲苯及衍生物。

    α,α - bis ( 4-hydroxycoumarin-3-yl ) toluene derivatives were synthesized by using aromatic aldehyde and 4-hydroxycoumarin in water without any catalyst under microwave irradiation .

  19. 香豆素类衍生物因具有重要的生物活性而受到人们的普遍关注,综述了香豆素、4-羟基香豆素类衍生物、香豆素类荧光染料等香豆素类衍生物的合成方法,展望了香豆素类衍生物良好的发展前景。

    Coumarin derivatives have been playing important roles because of their important bioactivity . The synthetic progresses of coumarin , 4-hydroxy coumarin derivatives and coumarin laser dyes were reviewed in the paper , and the prospect of coumarin derivatives was elucidated .

  20. 磷钨酸/活性炭催化合成7-羟基-4-甲基香豆素

    Catalytic Synthesis of 7-Hydroxy-4-Methyl Coumarin by Activated Carbon Supported Phosphotungstic Acid

  21. 苯磺酸催化合成7-羟基-4-甲基香豆素

    Synthesis of 7-Hydroxy-4-methylcoumarin Using Phenyl Sulfonic Acid as Catalyst

  22. 固体超强酸催化合成7-羟基-4-甲基香豆素

    Synthesis of 7 - Hydroxy - 4 - methyl Coumarin on Solid Superacid Catalyst

  23. 在固体超强酸的催化下以间苯二酚、乙酰乙酸乙酯或乙酰乙酸甲酯为原料,合成了7-羟基-4-甲基香豆素。

    Hydroxy 4 methyl coumarin was prepared from resorcinol , ethyl acetoacetate or methyl acetoacetate in the presence of solid superacid catalyst .

  24. 本论文中,主要通过苯甲酰肼、邻羟基苯甲酰肼、对羟基苯甲酰肼与柚皮素或4-甲基-7-羟基-8-乙酰基香豆素反应,合成了一些芳酰腙类有机配体。

    In this dissertation , several aryl-acylhydrazones were synthesized , by the reaction of benzoyl hydrazine , 2-hydroxy benzoyl hydrazine or 4-hydroxy benzoyl hydrazine with naringenin or 8-acetyl-7-hydroxy-4-methyl coumarin , separately .