查询词典 arenes
- 与 arenes 相关的网络例句 [注：此内容来源于网络，仅供参考]
-
Compounds 3a-3d, 4a-4d, 5a-5d, 6a-6e and 7a-7e were prepared with a new efficient method, in which the aromatic amines were diazotized with isoamyl nitrite in EtONa/EtOH under refluxing condition, and mono -, bis -and tetrakis -substituted calix [4] arenes were obtained respectively as main product by diazo-coupling in different molar ratio to calix [4] arene.
一，提出了一个有效的新方法合成含有芳香偶氮基团的杯[4]芳烃衍生物3a-3d；4a-4d；5a-5d；6a-6e和7a-7e：即在非水溶剂乙醇中用亚硝酸异戊酯，在强碱乙醇钠存在下对芳香胺进行重氮化，得到芳香重氮酸盐沉淀，过滤，然后加入杯[4]芳烃的四氢呋喃溶液，通入CO〓气体调节溶液的pH值为7-9，使其发生偶联反应。
-
The quantum parameters including dipole moments and HOMO energies of 46 halogenated arenes are calculated.
该模型较为明晰地描述了分配过程与分子结构的理论关系。
-
In the course of our study the chemistry of arenes contaning allylic acetates moiety under the catalysis of palladium, we found an efficient synthesis of benzocycles via intramolecular Friedel-Crafts reaction of halogen free 6-acetoxy-4alkenyl arens.
我们在设计钯催化的碳—氢键活化时，发现了含有烯丙基醋酸酯侧链的芳烃的三氟醋酸促进的分子内的Friedel-Crafts反应，从而为有效合成苯并六元环结构提供了一个方便的方法。
-
Air sample was taken for the determination of arenes (mainly benzene, toluene and xylenes), and the volatile gaseous mixture above the paint-diluent was taken for the analysis of VOC's.
从油漆稀释剂上方的挥发气体中取样用于有机挥发物的分析。
-
Their extraction properties have been studied by metal picrates liquid-liquid extraction and the results show:By using three thio-heterocyclic compounds, twelve novel derivatives of thioalkoxycalix[4]arenes on the lower rim have been synthesized and structurally characterized by 1H NMR、13C NMR、IR and MS.
本文采用三种巯基杂环化合物对杯芳烃下沿进行修饰，得到了下沿含有杂环硫烷氧基的杯芳烃系类系列衍生物，并利用~1H NMR、~(13)C NMR、IR和MS对所合成的十二个未见文献报道的新化合物进行了结构表征。
- 推荐网络例句
-
Panorama Many people are dancing in a large sitting room.
在一个大客厅里，许多人在跳舞。
-
We fully understand how a microwave oven cooks food, it is first necessary to talk ...
我们充分理解一个微波炉煮的食物，这是首先要谈。。。
-
The age of the patient is, therefore, almost equivalent to the duration of HBV infection.
因此患者的年龄几乎与乙肝病毒感染的病程相似。