合成物

This thesis is mainly about the research on the synthesis, structures and reactivity of di-or tri-metal bridging carbene and bridging carbyne complexes

过渡金属桥卡宾和桥卡拜络合物本身即为简单的金属原子簇化合物或是合成金属原子簇化合物的重要前体，在有机合成和烯炔烃的聚合和异构化等催化反应中有广阔的应用前景以及在某些过渡金属参与的反应的机理研究中具有重要的研究价值。

The association between the G residues requires that two of them change the orientation of the base with regard to the sugar (from the usual anti to the unusual syn configuration).

我们不知道端粒的互补链是如何组装的，但是我们可以假设它用终止G-T发夹的3'-OH作为DNA合成的引物来合成。

Pheromone traps; sex pheromone; anemotaxis; lures; disparlure; integrated control; attractants; chemical senses; chemoreception; chemoreceptors; infochemicals; semiochemicals; chemical stimuli; chemical communication; chemical cues; chemical perception; pheromones; pheromone receptors; pheromone biosynthesis-activating neuropeptide; pheromone biosynthesis; pheromone-binding protein; PBAN

信息素诱骗；性信息素趋风性；诱惑；舞毒蛾性引诱剂；综合防治；引诱剂；化学知觉；化学感受；化学接受体；信息化学；化学信息素；化学刺激物；化学通讯；化学因子；化学感觉；信息素；信息素受体；信息素生物合成-激活神经肽；信息素生物合成；信息素-结合蛋白；PBAN

Design and synthesis of copolymer with complex architecture are always pursued by polymer chemists in past decades.

具有复杂结构的共聚物的设计与合成是目前高分子合成研究中的热点之一。

In this paper, one spacer- armed analogue of a disaccharide SM_3 was synthesized for the first time via multi-step synthetic method.

本文经过11步反应，首次合成了带连接臂的SM_3寡糖链，为今后合成具有更高分子量的糖基缀合物并研究其抗肿瘤免疫原性奠定了基础。

Naphthol ethyl ether was sythesized with the ethanol and β-naphthol as materials and aluminium sulfate as catalyst.

介绍了以乙醇和β-萘酚为原料，在硫酸铝Al2(SO43.18H2O催化下合成β-萘乙醚的方法，讨论了反应时间，催化剂用量以及反应物摩尔比对合成的影响，确定了最佳反应条件。

In ovary, PNA receptors appeared in the oocyte cytoplasm of second phases of oogenesis; the positive granules gradually increased from third to forth phases, and they exhibit a maximum expression before vitellogennic stage in cytoplasm of oocyte; from vitellogennic stage to chorionation stage, the positive granules gradually reduced. Binding sites on follicle cells were changed with their morphological variation in every stage of oogenesis.The staged and specific expression of oncogene c-kit, the tyrosine-kinase receptor, is closely related with gametogenesis.

2在中华蚱蜢卵子发生的早期，PNA受体是由卵母细胞自身合成；在卵黄发生前的准备时期，卵母细胞质中的PNA受体一部分来源于自身合成，另一部分则来源于滤泡细胞，而糖复合物的大量出现可能直接与卵黄发生有关；卵黄发生期PNA受体的减少可能是在卵黄物质形成中部分发生了修饰；卵黄和卵壳的相继形成过程中，阳性反应的出现说明PNA受体参与了卵黄膜及卵壳的形成，而这些受体物质是由滤泡细胞分泌的。

We have studied the transition metal complexes catalyzed sequential cross coupling reactions of these new difunctional group reagents with electrophiles and nucleophiles, respectively; developed some convenient and practical new methods for the stereoselective synthesis of disubstituted alkenes, trisubstituted alkenes, conjugated dienes containing heteroatom, conjugated enyne containing heteroatom etc., enriching methodologies for organic synthesis.

继而研究了这些新型双官能试剂在过渡金属配合物催化下分别与亲电试剂、亲核试剂的顺序交叉偶联反应，为双取代烯烃、三取代烯烃、杂原子取代的共轭二烯烃、杂原子取代的共轭烯炔烃等的立体选择合成提供了方便实用的新方法，丰富了烯烃立体选择合成的方法学。

In this work, a series of antimicrobial agents containing the hydantoin structure such as AM, BM and AM-AN, were synthesized by changing the reaction conditions such as temperature, time, concentration of initiator and so on, and the N-halamine structure which possessed the ability of durable antimicrobial, was transformed through a chlorination process.

本文设计合成了一系列含乙内酰脲结构的再生抗菌剂。通过改变合成反应的条件，如反应温度、反应时间、引发剂浓度、加料方式等，制备了再生型抗菌剂前体AM、BM和AM-AN共聚物。

The ordered mesoporous material MCM-41 was synthesized by a hydrothermal method using fumed silica,sodium hydroxide/tetraethyl ammonium hydroxide/hydrogen chlorideand cetyl trimethl ammonium bromide.

用X射线衍射、氮气吸附-脱附等手段对比分析了合成的3种MCM-41介孔材料的物相、比表面积、孔径、孔体积等，发现酸性介质中合成的介孔材料的孔径最大。

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