• 亲核性芳香取代取代衍生物合成策略

    Nucleophilic Aromatic Substitution. Strategies in the Synthesis of Multisubstituted Benzene Derivatives.

    youdao

  • 测定27取代类化合物松花江江水中的生物降解性。

    The biodegradability of 27 substituted benzenes in the Songhua river water by BOD technique.

    youdao

  • 模型用于23取代有机物生物毒性预测,结果满意。

    The QSAR-ANN model has been used to predict the bio-toxicity of 23 substituted benzene chemicals.

    youdao

  • 研究10取代甲醛5取代苯乙酮电化学氧化机理。

    The electrochemical oxidation of 10 substituted benzaldoximes and 5 substituted acetophenone oximes has been studied.

    youdao

  • 说明了对于单取代衍生物取代作用可能重要作用

    It is also showed that substituents could play an important role in the toxic effect of mono-substituted benzene derivatives.

    youdao

  • 所用方法从前有机化学家用来阐述取代结构的方法,异构体计算法

    Werner's method was that used previously by organic chemists to elucidate the structures of substituted benzenes, namely isomer counting.

    youdao

  • 目的:设计合成一系列新的取代甲醛缩二胺类席夫碱,通过抗菌活性测试寻找具有抗菌活性药物

    Objective: a series of novel substituted benzaldehyde diamines Schiff bases were synthesized for screening antibacterial agents.

    youdao

  • 因此,我们开展了以水杨醛缩取代氧乙酰位单元为节点的配位聚合物结构化学研究

    So we developed the study on structural chemistry of Cu and Mn coordination polymers with substituted phenoxyacetyl ligands.

    youdao

  • 本文用自由基捕捉esr结合方法系统研究了各种取代与二光化反应中的活泼自由基。

    Active free radicals in the photochemical hydrogen abstraction reaction between benzophenone and aromatic amines have been studied systematically by combination of spin trapping reagents and ESR.

    youdao

  • 发明涉及新的(并)三组合物,包含功能液体例如矿物油中的并三唑N -取代苯并三唑混合物

    The invention relates to novel (benzo) triazole compositions comprising mixtures of benzotriazoles and N-substituted benzotriazoles in functional liquids, e. g. mineral oil.

    youdao

  • 首先测定17取代化合物对发光菌急性毒性,初步探讨了上不同取代基类型取代位置毒性影响

    The acute toxicities of 17 substituted benzenes to Photobacterium Phosphoreum were measured, and the effects of substituted groups and positions on toxicities were discussed roughly.

    youdao

  • 制备对硝基甲酰处理的间氯甲酚3-羟基-4-氯酚,并转化为取代的对硝基甲酮

    M-chlorocresol or 3-hydroxy-4-chlorophenol on treatment with p-nitrobenzoyl chloride was prepared and conyerted into substituted p-nitrobezyl ketone.

    youdao

  • 碱性取代甲酰制备方法,其作为药物诊断试剂用途以及含有它们药物。

    Basic group substituted benzoyl guanidine, its preparing process, its use as medicine or diagnostic reagent, and medicine containing the same.

    youdao

  • n-氯乙酰取代杂环化合物通过硫键的形成导入嘧啶结构。

    Three types of N? chloroacetyl substituted nitrogen? containing benzoheterocycles were introduced into pyrimidine by the formation of thioether.

    youdao

  • 甲醛乙酮出发,通过一步反应得到了不对称取代环己烷1

    A asymmetrically substituted hexane (1) was synthesized via a one-pot reaction of benzaldehyde and acetylbenzene.

    youdao

  • 咪唑衍生物取代并吡衍生物,其药用它们制备方法含有它们药物组合物

    Benzopyran derivatives substituted with a benzimidazole derivative, pharmaceutically acceptable salts thereof, their preparations and pharmaceutical compositions containing them.

    youdao

  • 本文报导了取代氧化物对乙酰氨基酰胺加成反应

    The addition reaction of substituted phenyl nitrile oxide and p-Acetaminobenzenesulfamide were reported.

    youdao

  • 氨磺酰-取代并二氢吡喃,其制法作为药物诊断剂应用含有它的药物。

    Sulfamine-substituted benzodihydopyran, preparation method, use as medicine or diagnostic reagent and medicine containing same.

    youdao

  • 系统介绍了二酚诸多的合成方法,对其中的磺化法、异丙法、芳化法和取代进行了简要评述

    The synthesis methods of resorcinol were introduced systematically in this paper, and the summary comments for every means were made.

    youdao

  • 溶剂,取代磺酸拆分诱导结晶法,经成盐、拆分、水解过程,将DL-羟基甘氨酸拆分成D-对羟基甘氨酸。

    The resolution of DL p hydroxyphenylglycine into its D and L isomers was studied by using aromatic sulfonic acid as resolving agent and water as solvent.

    youdao

  • 结果表明二甲酸酯化合物而言,取代空间结构参数影响好氧生物降解性能重要因素

    The result showed that the steric factors of substituents were important parameters affecting the aerobic biodegradability of the tested compounds.

    youdao

  • 本文报道以邻氯甲为原料,光氯化、水解取代三步合成2-甲酰基磺酸钠的方法,并对影响反应收率因素进行了讨论。

    Sodium 2-formylbenzenesulfonate was prepared from 2-chlorotoluene by photo-chlorination, hydrolysis and substitution reactions successively. Factors affecting the yields were discussed.

    youdao

  • 采用非等温差示扫描量热(dsc)研究了取代液晶环氧单体甲基六氢固化反应历程,考察了体系的固化反应动力学特征。

    A liquid crystalline epoxy monomer with long lateral substituent was cured with anhydride and the cure kinetics was investigated by non-isothermal DSC technique.

    youdao

  • 设计合成了一类以为电子给体,带不同吸电子取代基的为电子受体的新型短程有机电子给体受体体系

    A new series of short range donor acceptor systems consisting of anthracene and different substituted benzoic esters were synthesized.

    youdao

  • 设计合成一系列具有不同取代甲酰)胺衍生物,测定它们非极性溶剂己烷中的荧光发射光谱

    A series of prar-and meta-substituted benzanilides were synthesized and their fluorescence spectra in nonpolar solvent cyclohexane were investigated.

    youdao

  • 氧族元素取代2,1,3 -并噻二唑衍生物电子光谱电荷传输性质影响理论研究

    Carbon, nitrogen, and chalcogen substitution effects on 2, 1, 3-benzothiadiazole derivative: theoretical investigations of electronic, optical, and charge transport properties.

    youdao

  • 根据79个取代硝基晶体结构资料研究了其中存在的氢键几何特点

    Based on the crystal structure data of 79 substituted nitrobenzenes, geometrical characteristics of hydrogen bonding were studied.

    youdao

  • 发明含有甲酮取代单体及其制备方法应用属于高分子材料技术领域。

    The invention relates to a fluorine monomer with anthracene benzene ketone substituting group, the preparation method and the application, belonging to the technical field of macromolecular material.

    youdao

  • 发明含有甲酮取代单体及其制备方法应用属于高分子材料技术领域。

    The invention relates to a fluorine monomer with anthracene benzene ketone substituting group, the preparation method and the application, belonging to the technical field of macromolecular material.

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定