芳基

Diamines are performed. An new and effective atom economy, domino reaction is developed, and 5, 6dihydro-4H-thieno [2, 3-b] thiopyran are synthesized by 4-(4-methyl-1, 3-dithiol-2-ylidene)-1, 7-diaryl-1, 6-diene-3, 5-dione

然后以4-[（4-甲基-1，3-二噻烷-2-亚甲基）-1，7-二芳基]-1，6-二烯-3，5-二酮类化合物为合成子探索稠杂环合成方法，并发现一个高效的，具有原子经济性的多米诺效应合成方法，并成功的利用其合成了一系列噻喃并噻吩衍生物。

Secondly, the energy levels of every layer in a designed device have to be matched each other.Quantum chemical calculations were carried out in order to investigate the photoelectric performance of our target molecules. According to the results of our quantum chemical calculations, the HOMOs are usually distributed along the thiophene-perfluorocyclopentene-thiophene skeleton of diarylethene molecule in both of the open-ring state and closed-ring state.

实验表明，在阻挡层式光控载流子开关器件的设计中，要实现完全意义上的ON-OFF全开关，必须满足两个条件：一是作为光控载流子开关层的二芳基乙烯材料，必须具备足够大的开环态和闭环态之间的HOMO能级差异，在一种状态下有利于载流子的传输，在另一种状态下则可以顺利地阻挡载流子的传输；二是器件的各材料层之间的能级一定要互相匹配。

Substituted aromatic phosphate is one of the most important nucleating agents for polypropylene.

摘要取代芳基膦酸盐是最重要的聚丙烯成核剂之一。

The results show that the catalyst could catalyze the Heck reaction of substituted aryl halide with crylic acid, the yields were above 80%.

结果显示，CL-HA-Pd/Ni具有较快的反应速率和较高催化活性，可成功催化取代芳基卤与丙烯酸的Heck反应，产率在80%以上。

Besides, n-butyl and sec-butyl tosylate that are difficult for oxidative addition can react with phenylmagnesium bromide to form corresponding cross-coupling products. Primary alkyl halide which contains β-hydrogen and is relatively hard to undergo the reaction , n-butyl chloride for instance, can react with aryl Grignard reagents in the presence of NiB alloy as well.

此外，难以进行氧化加成的对甲苯磺酸正丁酯和对甲苯磺酸仲丁酯可以与苯基溴化镁作用生成相应的交叉偶联产物；反应相对困难的含β-H的伯卤烷，如：正氯丁烷也可以在NiB催化下与芳基格氏试剂发生偶联。

The photoinduced cis-trans isomerization reaction occurs after photo-irradiation of this compound, and the rate of conversion depends strongly on the polarity of solvents used.

八 研究了C5位联有含氮茋的三芳基-2-吡唑啉化合物(TPP15)的光物理行为，发现：该化合物在不同极性溶剂中的荧光量子产率值呈倒钟形状，这与在不同极性溶剂中邻近效应的大小以及吡唑啉环和含氮芪基团间的电子转移的难易程度有关。

The Pd-catalyzed Suzuki-Miyaura cross-coupling reaction is one of the most efficient methods for the construction of C-C bond.

Suzuki偶联反应是一种形成C—C键的有效方法，在有机合成中发挥着重要的作用。该反应具有反应条件温和、可适用多种活性官能团、受空间位阻影响不大、产率高以及芳基硼酸经济易得且对潮气不敏感等优点，因而得剑广泛应用。

The industrialized situation, problems and solving ways of heavy alkylbenzene sulfonate and petroleum sulfonate were mainly, such introduced, and the research developments and industrialized prospect of arylalkyl sulfonate, alkylated diphenyl ether sulfonate and fatty alcohol ether sulfonate were discussed at the same time.

介绍了重烷基苯磺酸盐和石油磺酸盐工业化生产的现状、存在的问题以及解决的途径，并探讨了芳基烷基磺酸盐、烷基二苯醚磺酸盐和脂肪醇醚磺酸盐的研究现状与工业化前景。

A plausible process of this reaction is as following: Aldehyde was in equilibrium with the enol form, aldehyde reacted with aniline catalyzed by 2,2,2-trichloroacetic acid to afford imine, the generated imine immediately reacted with enol to form intermediate via intramolecular cyclization.

我们发现一分子芳基叠氮和一分子三苯基磷反应生成一分子磷亚胺，后者与由两分子取代的苯氧乙酰氯原位生成的烯酮反应生成4-亚烷基-β-烷基-内酰胺，其串联过程涉及烯酮亚胺的形成及其与烯酮的[2+2]的环加成反应。

But, at present, the production of a soil displacement agent from heavy alkylbenzene sulfonate and petroleum sulfonate as oil displacement agent, there were still some problems as the instable quality, produce scale. It is necessary to develop a feasible production process of arylalkyl sulfonate, alkylated diphenyl ether sulfonate and fatty alcohol ether sulfonate as they can be used as oil displacement assistant in some special oil reservoir. In which Because their abundant raw material, big changeability of structure, high electrolyte tolerance, especial strong calcium tolerance, fatty alcohol ether sulfonate has huge industrialized value.

指出重烷基苯磺酸盐和石油磺酸盐作为三次采油的主表面活性剂，目前在工业化生产中仍存在一些问题，产品质量不太稳定，需进一步改进生产工艺技术，提高产品质量，扩大生产规模；芳基烷基磺酸盐和烷基二苯醚磺酸盐可作为助表面活性剂用于特殊的油藏条件，有必要尽快开发可行的工业化生产工艺；脂肪醇醚磺酸盐类表面活性剂的原料来源丰富，分子结构可变性强，耐电解质能力强，尤其是耐钙能力强，应用领域广，极具工业化价值。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。