用合成法合成

The azo derivatives were hydrolyzed on the condition of alky to get end products. The structures of azo derivatives of 4-ASA and intermediate products were characterized by melting point, TLC, MS, FT-IR, 1H-NMR and 13C-NMR spectra properties in details.

本课题探索了一条4-ASA偶氮化合物的多步合成工艺，得到了目标产物三个，对合成的目标产物和中间产物用熔点、薄层色谱法、MS、FT-IR、1H-NMR和13C-NMR进行了详细的表征，确定了它们的结构。

objective to determine the contents of residual acetone in acetoacetic ester,the raw material for the synthesis of edaravone, by gas chromatography.methods sample solution was injected on a gdx column (0.18 mm～0.25 mm) with nitrogen as the carrier gas.the residue was calculated by the external standard method.results the linearity was good over the range of 25 μg/ml～400 μg/ml,with the correlation coefficient of acetone being 0.996 and the average recovery 96.8%.conclusions the method was proved to be simple,rapid,practical and highly sensitive.it is an efficient method for the quality control of acetoacetic ester.

摘要］ 目的：用气相色谱法测定依达拉奉合成起始原料乙酰乙酸乙酯中丙酮的残留量。方法：采用固定相为二乙烯苯乙基乙烯苯型高分子多孔小球（直径为0.18 mm～0.25 mm），氮气为载气，用外标法测定乙酰乙酸乙酯中残留丙酮的含量。结果：该方法在丙酮浓度范围在25 μg/ml～400 μg/ml内呈良好的线性关系，响应曲线相关系数为0.996，平均回收率为96.8%。结论：本法简便，快速、实用，灵敏度高，可有效地用于乙酰乙酸乙酯的质量控制。

Objective To determine the contents of residual acetone in acetoacetic ester,the raw material for the synthesis of Edaravone, by gas chromatography.Methods Sample solution was injected on a GDX column (0.18 mm～0.25 mm) with nitrogen as the carrier gas.The residue was calculated by the external standard method.

摘要］ 目的：用气相色谱法测定依达拉奉合成起始原料乙酰乙酸乙酯中丙酮的残留量方法：采用固定相二乙烯苯乙基乙烯苯型高分子孔小球（直径为0.18 mm～0.25 mm），氮气为载气，用外标法测定乙酰乙酸乙酯中残留丙酮的含量。

The method of using fluorine hydride to produce fluorobenzene is the best method,which overcomes the shortcoming of the Schiemann method,it can make the cost lower,reduce waste gas and raise recovery rate.

用无水氟化氢法生产氟苯是国内外最先进的方法，它克服了传统席曼法的缺点，它的显著优点是使成本降低、废气减少、收率提高，本文介绍了生产氟苯的两种主要方法的合成原理，重点介绍了无水氟化氢法生产氟苯的生产工艺过程及对所产生的废酸、污水、废渣的处理。

These compounds are of substantial interest both inviewpoints of theory and practical applications, mainlyunder the stimulus to achieve synthetic models either foractive sites of iron-sulfur proteins or for transitionmetal catalysts. This thesis describes the synthesis, structures andconformations of 51 new iron-sulfur cluster complexes,which have been characterized by elemental analysis andstandard spectroscopic methods. In addition, single-crystalX-ray diffraction analyses were performed for 4 representa-tive new compounds. Reactivities of μ-〓 with mono- and di- Grig-nard reagents derived intermediates toward various organicelectrophilic substrates were studied, along with complexa-tion of arynyl-containing iron-sulfur clusters by 〓Thus, several bridged, non-bridged, monomeric, dimeric,homonuclear, heteronuclear iron-sullfur and iron-sulfur co-balt-carbon cluster complexes were synthesized. A novelreaction and convenient route for the synthesis in highyield of tetranuclear iron complexes 〓 containing atetracoordinated sulfur atom was discovered, whereas aplausible mechanism based on experimental results was propo-sed for the formation of the new cluster type.

鉴于有机铁硫原子簇化学在基础理论发展和应用方面的重要意义，因此我们开展了这一课题的研究，并取得以下主要成果： 1、本文共合成了51个新有机铁硫及含钴碳簇基的有机铁硫原子簇配合物，除用元素分析，NMR，IR，MS法表征其结构和构象外，还用X-光衍射技术测得四个代表性配合物的单晶结构和构象； 2、我们业已发现炔基Grignard试剂同〓可形成一种&开环&与&闭环&中间物的平衡混合物，研究该平衡混合物同各种亲电试剂的反应； 3、研究发现了一种可高产率地形成〓含〓四配位硫挛合簇的新化学反应并对此反应提出了—种有趣的反应机理； 4、首次由1，4-二溴丁烷双Grignard试剂与〓制得一种新型铁硫簇双硫阴离子活性中间体，并进而研究了它的亲核反应性能； 5、找到了通过〓的光化学反应来合成簇合物〓-〓的一条有实用价值的新路线。

By dehydrochlorination reaction the poly[(2-methoxyl-5-octyloxy)phenylene vinylene] is synthesized and the material"s structure is characterized by nuclear magnetic resonance spectroscopy, infrared absorption spectrum, ultraviolet and visible spectrophotometry. At the meantime, the fluorescence spectrum is measured and the mechanism of fluorescence occurring is analyzed. Thermal Gravimetric Analyzer"s results show that the MO-PPV"s thermal stability is fine. Also the experiment of resolvable property indicates that the MO-PPV can well dissolve in chloroform. Through analyzing the film"s surface by Metaloscope and Atomic Force Microscope, the good filming is found.

通过脱氯缩合法合成了聚(2-甲氧基-5-辛氧基)对苯乙炔，并分别用核磁共振波谱法、红外吸收光谱法、紫外-可见分光光度法等对其进行了结构表征；测量了样品的荧光光谱，分析了荧光产生的机理；热失重仪分析了材料的热稳定性，研究表明MO-PPV材料具有良好的热稳定性；溶解性实验发现材料在氯仿中溶解性较好；金相显微镜和原子力显微镜研究了薄膜的表面形貌，发现该材料的成膜性良好；材料的导电性研究表明，固体材料在掺杂下才可以表现出导电特性，而配成溶液的材料导电性因溶剂的不同而不同，并随溶解时间的长短发生变化。

Products have good thermal stability anddecomposition temperature above 200℃; Selected lauryl amine as a case, then optimizedthe synthesis conditions by orthometric trial, and obtained the best synthesis technichs: themolar ratio of 1: 2.1, the reaction temperature was controlled at 80℃and the reaction timeof 16 h, reaction to the solvent n-propanol.

并对其热稳定性进行了分析，合成产物具有较好的热稳定性，分解温度都在200℃以上；以十二胺为例，用正交实验法优化合成条件，获得最佳合成工艺为：摩尔配比为1：2.1，反应温度控制在80℃，反应时间为16h，反应所用的溶剂为正丙醇。

One side of a thin elastic base cloth is attached with a layer of machine woven cloth, and the other side of the base cloth is compounded with a PU layer via wet processing of synthesized leather, then the base cloth is dried and molded, and the machine woven cloth is peeled during a coiling process; wherein, the base cloth and the machine woven cloth are fuzzed in a single surface, the fuzzed surface of the machine woven cloth is attached to the non-fuzzed surface of the base cloth by low concentration hydrophilic adhesive, and the PU layer is compounded to the fuzzed surface of the base cloth.

一种薄型、弹性PU合成革的制作方法，先在薄型、弹性基布的一面贴合一层机织布，再在基布的另一面用合成革湿法工艺复合PU层，干燥定型，然后在收卷过程中剥去机织布，其中基布单面起毛，机织布也为单面起毛，机织布的起毛面用低浓度的水性粘结剂贴合在基布的不起毛面上，PU层复合在基布的起毛面上。

To observe the effects of HASF on viability and collagen synthesis of two cell lines, AgNORs staining, 3H-proline incorporation and HYP determination were carried out.

层析法从兔羊水及胎兔血清中提取HASF并做活性鉴定；用嗜银蛋白染色法、3H-脯氨酸掺入法和羟脯氨酸测定法观察不同浓度的HASF对细胞增殖活性和胶原蛋白合成的影响。

Methods: Oocytes in the GV stage were separated from ovary by squeezing method. In mouse germinal vesicle GV stage, the expression of ATP8 gene in the mitochondria in the single oocyte was detected by RT-PCR, in which, cDNA was synthesized with two methods: one was the single GV-stage oocyte directly to be placed RT, the other was to perform RT after eliminating mtDNA and nucleus DNA with the EeoR Ⅰ enzyme and Dnase. And the product of RT-PCR was cloned and sequenced.

应用挤压法从卵巢中分离获得生发泡期(germinal vesicle， GV)卵母细胞；用RT-PCR检测GV期单个卵母细胞中ATP8基因的表达：其中cDNA的合成分两种方法进行：一是将GV期单个卵母细胞直接进行RT合成cDNA，二是先用DNA酶加EcoR Ⅰ酶祛除mtDNA和核DNA后再进行RT；回收产物构建克隆质粒并测序。

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