查询词典 aryl

It was found that photoinduced cyclization of aryl fulgides is a fast process, and only the excited signlet state is involved in the photocyclization reaction.

结果表明，这类芳环取代的俘精酸酐的光致环合反应是经过激发单重态进行的快速过程。

Moreover, the ester linkage bond and aryl arrangement in the mesogenic core also affected the mesophase behavior.

液晶核中的酯基桥键与组合方式也对单体的熔点和清亮点具有一定的影响。

To investigate the influence of surfactant molecular structure on micellization in solution, we used molecular dynamics to simulate the molecular structure and interaction of three alkyl aryl sulfonates in vacuum and in solution.

为研究不同结构的表面活性剂分子在溶液中胶束化能力的差异，采用分子动力学方法模拟三种烷基芳基磺酸盐在真空和水溶液环境下的结构与相互作用。

Aryl disulfides, for example , inhibit polyolefin oxidation

例如芳基二硫化物可抑制聚烯烃的氧化。

In the chapter 2 of this dissertation, we studied the cross-coupling reaction of aryl halides and vinyl iodides with sodium azide under the catalysis of copper and amino acids.

在4-碘茴香醚与叠氮化钠的模型反应中，我们考察了不同溶剂、氨基酸、碱、铜盐对反应的影响，最后筛选出了最佳的反应条件：CuⅠ/脯氨酸/NaOH/DMSO。

The enantioselective reduction of aromatic ketones was investigated by using celeriac chips as biocatalysts under mild and environmentally benign conditions, which afforded corresponding optically active-1-aryl alcohols. The enantioselectivity of products was in accordance with the Prelog's rule.

研究了用芹菜茎薄片在温和与环境友好的条件下催化芳香酮的对映选择性还原反应，制备得到具有光学活性的-1-芳基醇，产物的对映选择性符合Prelog规则。

The compositions include at least one polymerizable aryl acid compound, an effective amount of a polymerization initiator, and at least 10 percent by weight of ceramic, metal and/or metal oxide filler particles having a particle size less than 500 microns.

组合物含有至少一种可聚合的芳基酸化合物、有效量的聚合引发剂以及至少10％其粒径小于500μm的陶瓷、金属和／或金属氧化物填充料颗粒。

Thus, the method can only be used to the cyclization of N~4-aryl-4,5,6-triaminopyrimidine with oxalic acid.

在合成各类化合物的过程中，共得到未见文献报道的新型中间体50多个，并根据其结构特征，用相应的光谱对其结构进行确证。

While conducting studies on deamination of commercially available phenethylamines, the scientists found that the intermediate imine can react further to yield aryl-substituted pyrroles 1 in good yields.

在研究上买到phenethylamines酰胺、科学家发现能进一步反应中间体亚胺芳产量取代吡咯-1良好收益。

In addition, some aryl-substituted propenoic acids were prepared via Perkin reaction. The cyclization and decarboxylation reaction were studied.

此外，通过Perkin反应合成了4种芳基取代丙烯酸，研究了其关环和脱羧反应。

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。