heterocycle

It represents an example of a heterocycle being formed as transient species.

它仍然是在反应中生成过渡状态的杂环的实例.

The reduced heterocycle 46 conveniently separates out during the reaction.

在反应过程中被还原的杂环(46)可以方便地分离出来.

In this dissertation, we have synthesized five kinds of new calix [ 4] arene derivatives containing heterocycle thiadiazole functional groups tethered by ether bridges at lower rims.

本论文将含有氮、硫杂原子基团引入到母体杯[4]芳烃中，合成了5种由醚键连接的杂环功能基杯[4]芳烃衍生物。

The this paper, some of Heterocycle Compound which including pyridine, imidazole, thiazole, pyrimidine, indol etc, use for pharmaceutical intermediates or raw were summarized.

择要介绍了近期研发的、用于医药品生产的一些杂环化合物的合成和开发情况。这些化合物包括有吡啶类、咪唑、三唑、嘧啶、哌嗪、吲哚类等。

In particular, the nitrogen-containing heterocycle ligands, such as bipyridine, pyrimidine and azine and their derivatives, are most widely used. As their complexes can generate one-, two-and three-dimensional structures.

含氮杂环-联吡啶、联嘧啶和连氮等杂环化合物及其衍生物-是最常见的多齿配体之一，这些配体与金属Cu（Ⅰ）能形成一维、二维和三维结构的配合物。

A film forming quarternary ammonium salt corrosion inhibitor 9912 1 containing aza heterocycle was synthesized.

设计合成了一种成膜型的氮杂环的季胺盐缓蚀剂99121。

The heterocycle in ( 4 ) is a masked fused ring held in abeyance.

中的杂环可以看作是一个被掩蔽的,处于暂时停顿状态的稠环.

The H/ D exchange of the benzothiazole has also been carried out. The result indicated that the hydrogen at C-2 of the heterocycle can be removed in the presence of K2CO3 without the copper catalyst.

无催化剂条件下苯并噻唑的H/D交换实验，证实了碳酸钾可以直接夺取杂环2-位碳上的氢，无需催化剂的辅助。