Aryl-fluoride is a sort of new fine chemical intermediates . It is difficult to determine their structures.

1、

The aryl-alkylation of α-methylstyrene with phenol in the presence of various strong acid catalysts were studied.

分别以磷酸 - 冰醋酸,苯酚铝,阳离子型交换树脂及络合物为催化剂,研究了α - 甲基苯乙烯与苯酚的烷基化反应.

互联网摘选

2、

The synthetic method and chief characterization of some fluorinated aryl polymers were introduced in this paper.

本文介绍了一些含氟芳香聚合物的制备方法及主要特性.

互联网摘选

3、

This section focuses on pyrazole ketones, indole acetic acids, aryl alkyl acids non-steroidal anti-inflammatory drugs.

本节重点介绍吡唑酮类、邻氨基苯甲酸类、吲哚乙酸类、芳基烷酸类及其他结构类型的非甾体抗炎药.

互联网摘选

4、

Aryl bromides and aryl chlorides are cheaper and more easily available than aryl iodides.

相对芳基碘化物而言,芳基溴化物、芳基氯化物不但价格低廉,而且有原料易得的优势.

互联网摘选

5、

Aryl substituted polyacetylenes and their derivatives exhibit a lot of novel optical , electric, magnetic properties.

芳基取代聚炔及其衍生物呈现出光电磁等许多新颖的性能.

互联网摘选

6、

The reaction kinetics of synthesizing aryl isocyanate by aryl amine and phosgene was studied.

研究了芳胺和光气反应生成异氰酸酯的反应动力学.

互联网摘选

7、

It will become deepen to the students'recognization in mechanism of Aryl electrophilic substitution.

这些问题的讨论将深化学生对芳烃亲电取代反应机理的认识.

互联网摘选

8、

In addition, acid and halogenated hydrocarbons aryl the coupling reaction is a C-C bond important ways.

此外, 芳基硼酸与卤代烃的偶合反应是形成C -C 键的重要途径.

互联网摘选

9、

In the reaction of NAE 18 with nitrogen mustard aryl phosphorochloridate, 4-dimethylaminopyridine ( DMAP ) played critical catalytic action.

在合成工作中发现:在NAE18与氮芥芳基磷酰氯的反应过程中, 4- 二甲氨基吡啶 ( DMAP ) 起着关键性的催化作用.

互联网摘选

10、

Cesium carbonate catalyzed O-alkylation of phenol to synthesize alkly aryl ethers.

摘要研究了碳酸铯催化酚与卤代烃反应制备烷基芳醚.

互联网摘选

11、

Aim To study the synthesis and antitumor activities of some aryl-substituted pteridines.

目的研究多芳基取代蝶啶类化合物的合成及其抗肿瘤活性.

互联网摘选

12、

Ten aryl chloroacetates were synthesized by liquid-liquid phase transfer catalysis.

摘要利用液 - 液相转移催化法合成了10种氯乙酸芳酯.

互联网摘选

13、

The most effective syhthetic condition for aryl chloroacetates was obtained experimentlly.

讨论了不同反应条件对产率的影响,通过正交实验,探索出了最佳合成条件.

互联网摘选

14、

Aryl disulfides, for example, inhibit polyolefin oxidation.

例如芳基二硫化物可抑制聚烯烃的氧化。

互联网摘选

15、

Conclusion Subtotal laryngectomy with preservation of arytenoid cartilage is recommended for T 3 laryngeal cancer.

手术的关键是不能损伤杓状软骨及喉返神经,设计好环咽吻合方案.

互联网摘选

16、

Our aim was to discuss the cause of laryngeal paralysis and the effect of arytenoid adduction.

探讨喉麻痹的原因和杓状软骨内移术的手术效果.

互联网摘选

17、

Objective To improve the diagnosis and treatment of arytenoid subluxation ( AS ) following endotracheal intubation.

目的提高对气管插管后环杓关节半脱位 ( AS ) 诊断和治疗的认识.

互联网摘选

18、

As a consequence , she was resentful and suspicious.

这么一来, 她变得满腹怨恨和疑心重重.

网络文摘精选

19、

As a consequence, the task of configuring a mobile device is getting even more complex.

因而, 正确配置好手机操作系统的工作会变得更复杂.

网络文摘精选

20、

As a consequence his flock is and dies in its own turn.

结果,羊群流离失所,最终也是丧亡.

网络文摘精选