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- quinolinyl substituents 喹啉
- Their chemical and physical properties can be tailored by judicious selection of cation, anion, and substituents. 通过选择合适的阳离子、阴离子和配体,可以调变离子液体的化学、物理性能。
- The effect of substituents on epoxides was studied.The reaction pathway of this allylation was also suggested. 还研究了环氧化合物取代基的影响,并提出了此烯丙基化的反应途径。
- Third-order Optical Nonlinearities of Poly (p-phenylene vinylene) Derivatives with Alkoxyl Substituents[J]. 引用该论文 李宝铭;吴洪才;李晓奇;易文辉.
- The effects of different calixarene substituents on aromatic position isomer retaining were explored. 研究探讨了杯芳烃上不同取代基的固定液结构对芳香族位置异构体保留行为的影响。
- Enols can be stable or even isolable by beating special substituents or in proper environments. 摘要烯醇受环境因素和取代基的影响在一定条件下可以稳定存在。
- The extraction behavior of dialkyl( aryl) Sulfides may be controlled by polar and steric substituents effects. 二烃基(基)醚的萃取行为受极性和空间取代基效应的控制.
- The yields are influenced by the substituents with high yields for phenyl group and low yields for alkyl groups. 反应产率受取代基影响较大,苯基取代时产率较高,烷基取代时产率较低;
- We separated seven kinds of benzene substituents successfully by using capillary electrochromatography method. 用毛细电色谱法成功地分离了七种苯取代物,并获得了很好的重现性和分离度。
- The synthesis of tetrazolones and the influence of substituents on their herbicidal activities are summarized. 总结了四唑啉酮化合物的合成、取代基对母体除草活性的影响。
- It follow therefore that the steric blocking effects of substituents are reflected in adverse kinetic, rather than thermodynamic factors. 由此可以看出,取代基的主本阻碍反应,是反映在违背动力学因素而不是热力学因素。
- It is seen that all secondary hydroxyl groups are on carbon atoms having four different substituents attached to them. 可见所有次级羟基都在一个碳原子上,这个碳原子有四个不同基团与它连接。
- In the IUPAC system, alkyl and aryl substituents and many functional groups are named as prefixes on the parent (for example, iodomethane). 在系统命名法中,烷基、芳基取代基和许多官能团被命名为前缀并放在一个母体的前面(例如:碘甲烷)
- Bleaching and sterilization properties of sulfonated aluminum phthalocyanine containing halogen substituents were studied. 研究了磺酸基氯(溴)铝酞菁的漂白杀菌性能。
- The synthesis of tetrazolones and the influence of substituents on their herbicidal activities are summarized. 27 References are presented. 总结了四唑啉酮化合物的合成、取代基对母体除草活性的影响。参考文献27篇。
- It was found that the sulphonamide group and the substituents on nitrogen atom within the molecule would effect the properties of these dyes. 坚牢度和光谱特性,发现磺酰胺基和在它的氮原子上的取代基会影响该类染料的性能。
- Due to introduction of substituents on nitrogen site,N-substituted polyanilines had good solubility in many organic solvents,but lower in conductivity. 由于N位上取代基的引入,使得导电聚合物具有较好的溶解性能和加工性能,但导电性能较低。
- Some nitrones synthesized only have substituents on the phenyl rings connected with a -carbons, and the others are substituted on both phenyl rings. 其中部分化合物仅一侧的苯环上带有取代基,而另部分化合物则两个苯环上均带有取代基。
- The characteristics of the electronegativity,banding type,and elcctron-ic effct of the substituents and hetero-atoms are induced in this paper. 本文从电负性、键型和电子效应三个方面总结归纳出定位基和杂原子的特征,并将其用于识别芳环上亲电取代的位置,从而找到一种反应位置的简易判别法。
- The positions and kinds of donor-acceptor substituents had significantly effects on molecular first-order hyperpolarizability of Schiff bases. 我们发现,取代基的种类和位置对希夫碱的第一超极化率有很大影响;