化学合成

Topics covered include phosphines, applications of phosphorus and compounds as reagents in synthesis, the chemistry of phosphorus ylides, applications of the Wittig reaction in the synthesis of heterocyclic and carbocyclic compounds, preparation of Iminophosphoranes and their synthetic applications in the aza-Wittig reaction, phospho-transfer processes leading to bond formation, low valent phosphorus compounds and phosphorus methods in oligonucleotide chemistry.

包括的题目包括phosphines，磷的应用和作为在综合过程中的试剂的化合物，磷ylides的化学，在heterocyclic 和carbocyclic 化合物的综合过程中的威蒂格反应的应用， Iminophosphoranes的准备和在aza-威蒂格反应里的他们的合成申请，phospho 转换过程导致在oligonucleotide 化学方面的契约形成，低的化合价磷化合物和磷方法。

Topics covered include phosphines, applications of phosphorus and compounds as reagents in synthesis, the chemistry of phosphorus ylides, applications of the Wittig reaction in the synthesis of heterocyclic and carbocyclic compounds, preparation of Iminophosphoranes and their synthetic applications in the aza-Wittig reaction, phospho-transfer processes leading to bond formation, low valent phosphorus compounds and phosphorus methods in oligonucleotide chemistry.

包括的题目包括phosphines，磷的应用 Application 和作为在综合过程中的试剂的化合物，磷ylides的化学，在heterocyclic 和carbocyclic 化合物的综合过程中的威蒂格回应的应用 Application ， Iminophosphoranes的准备和在aza-威蒂格回应里的他们的合成申请，phospho 转换过程导致在oligonucleotide 化学方面的契约形成，低的化合价磷化合物和磷方法。

Until now, all taxol used in cancer chemotherapy and scientific research is isolated from yew tree or semi-synthesized from its precursors such as baccatin III, 10-deacetylbaccatin III and so on which all are isolated from this natural plant.

至今为止，所有用于临床治疗和科学研究的紫杉醇都是从红豆杉植物中直接分离或由巴卡丁III， 10-脱酰基巴卡丁III等化学半合成前体合成而得，而这些前体也是由植物中分离得到的。

The objective of this dissertation is to synthesize rare-earth metal complexcompounds and develop assembling techniques for fabricating ordered, highly packedand stable thin films as sensitive films of the gas-sensors and immunosensors.

本文合成了稀土元素与氮、氧的配合物，利用LB膜技术和化学自组装技术，将稀土配合物应用于化学和生物敏感元件和传感器中，主要工作如下： 1。

The on-line reaction kinetics of RIM polymerization of PU/VER SINs has been monitored by using a mini-RIM machine interfaced with FTIR During the course of synthesis, the two pairs of reactants interfere with each other in PU/VERA SIN system, although they follow different polymerization mechanisms and the possibility of inter-component chemical binding may be neglected (secondary hydroxyl groups of VERA capped).

在对机械搅拌混合物料PU／VER SIN体系进行了DSC、FTIR聚合反应动力学研究的基础上，本文首次利用第一台国产微型RIM机成功地实现了RIM PU/VER SIN体系合成时的FTIR在线聚合反应动力学测量。虽然PU、VERA网络的生成遵循不同的聚合反应机理（逐步缩聚反应、自由基共聚反应），并且两网络间的化学键合作用可以忽略（VERA为封闭仲羟基的VER），但合成PU/VERA SIN时两组份的相互作用不容忽视，两网络的生成速率均低于同样温度下纯网络的生成速率。

Unshedule DNA synthesis test is a very important indicator which is used to detect the mutagenesis and carcinogenesis of chemical carcinogens.

非程序DNA合成试验已被用作检测化学物质的致癌性/诱变性，筛选化学致癌物的一项重要参考指标。

The object of this study is to prepare of soy oleic acid from the acidic oil , which was made from soap stock by acidification with sulfur acid, followed by hydrolysis, distillation and emulsification separation.

以菜籽油或酸化油为原料，进行了菜籽油及酸化油合成生物柴油工艺中试；得出了较理想的合成工艺条件；利用气相色谱及化学分析法，对生物柴油的燃烧特性进行了分析。

In order to understand the effect of sodium dodecyl sulfate on gas hydrate formation, the experiments of gas hydrate formation were conducted using the gas hydrate formation and dissociation system.

为研究钻井液化学成分对天然气水合物的影响作用，利用天然气水合物人工合成实验系统进行了天然气水合物的人工合成实验。

The journal is edited and published by American Chemical Society. It publishes studies that facilitate the synthesis of chemical libraries, as well as their subsequent characterization and screening for properties of interest. It is a must-read interdisciplinary journal that opens up channels of information for synthetic organic chemists, medicinal and analytical chemists, pharmaceutical scientists, biotechnologists, computational chemists, and material scientists.

该杂志刊载促进与化学药品库合成及其性质鉴定，以及随后对感兴趣特性的检测和筛选方面的研究论文，是一本对于有机合成化学家、医药分析化学家、制药科学家、生物工艺学家、计算机化学和材料学家必读的杂志。

Doped AgBr emulsion had an optimal amount with AgBr to silver stearate of 1∶4 in PTG materials.

由Zou以及Sahyun[1]等人在早期报道的，粘合剂采用溶剂型聚乙烯醇缩丁醛，卤化银采用原位法合成时的PTG材料的化学增感无效，照相速度的提高总伴随着灰雾的增加；他们认为当卤化银颗粒与羧酸银有界面存在时，传统化学增感的效果不明显；由Yamane[2]等人于近期报道的

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失