1、

The hydroxyl groups can be changed into esters , ethers , acetals and ketals, etc.

最常用的羟基保护基可归纳为三类:酯类 、 醚类和缩醛或缩酮类.

互联网摘选

2、

A review with 21 references on development and applications of calix crown ethers are described.

摘要综述了杯芳冠醚的产生、发展及应用研究的新进展,展望了它的工业应用前景.

互联网摘选

3、

As an important octane booster in unleaded gasoline , the need for ethers becomes more and more.

醚类作为重要的高辛烷值调和组分, 需求量日益增加,醚化催化剂的研究也越来越活跃.

网络文摘精选

4、

The nicramine ethers perform two functions in the smokeless powder composition.

硝胺醚在无烟火药成份中有两种作用.

词典精选例句

5、

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

6、

The synthesis of amide-type aza-crown ethers

酰胺型氮杂冠醚的合成

互联网摘选

7、

This article reviewed the synthesis of N-substituted aza crown ethers and their new applications to the field of selective complexation and extraction for metal ions.

摘要综述了n-取代氮杂冠醚的合成和对金属离子的选择性络合和萃取研究的新进展。

provided by jukuu

8、

Schiff Bases and Secondary Amines Containing Two Benzo-15-crown-5 Units II. Potassium Ion Selective PVO Membrane Electrodes Based on Bis-Crown Ethers as Carrier

Schiff碱型和仲胺型双冠醚Ⅱ.用双冠醚作载体的PVC膜钾离子选择性电极

互联网摘选

9、

Synthesis of noncyclic crown ethers with 1 phenyl 3 benzoyl thiocarbamide as terminal groups(ⅱ)

含有1-苯基-3-苯甲酰基硫脲端基的开链冠醚的合成(Ⅱ)

互联网摘选

10、

Synthesis of Noncyclic Crown Ethers with 5-methyl-1,3,4-Thiadiazole-2-thio as Terminal Groups

5-甲基-1,3,4-噻二唑-2-硫为端基的非环冠醚的合成

互联网摘选

  • 今日热词
  • 热门搜索

简答网英语词典(dict.jiandongshicai.cn)为您提供在线翻译英语词典单词大全英译汉汉译英等英语服务!可按单词字数词义分类查询。支持lj:关键词格式查询例句。

用户反馈
请选择反馈类型(可多选):
您的联系方式:(如需回复请填写联系方式)
反馈内容:
提交成功 小编会尽快处理
回到顶部
点击反馈