Keto-enol tautomerism is the most common tautomery phenomenon. Keto -enol themselves are the real chemical substance.

酮及烯醇互变是互变作用最普通的现象，它们都是真实的化学实体。

Keto - enol tautomerism is the most common tautomery phenomenon. Keto - enol themselves are the real chemical substance.

酮及烯醇互变是互变作用最普通的现象, 它们都是真实的化学实体.

Six dimethylsilyl bis -- enol others of aldehydes are synthesized and the yields are good.

合成了六个醛的二甲硅基双烯醇醚,产率较高.

This complex reaction is characterized by a keto enol tautomerism equilibrium and ester exchange reaction.

此螯合反应是由酮—烯醇互变异构平衡过程和酯交换反应组成.

This complex reaction is characterized by a keto - enol tautomerism equilibrium and ester exchange reaction.

此螯合反应是由酮一烯醇互变异构平衡过程和酯交换反应组成.

Keto-enol tautomerizing of ethyl acetoacetate was studied by UV. It was conformed that the content of enol ethyl acetoacetate decreased with the increasing polarity of solvents.

本文以紫外光谱为手段研究乙酰乙酸乙酯的酮-烯醇式互变异构现象；所得结果证实其烯醇式含量随溶剂极性的增加而减少。

It does not make any sense that trying to separate the tautomers of enol and ketone.

一化合物，在溶液中存在酮式与烯醇式互变异构体，普通液相柱中能否分开？

The relative content of enol form on the different condition is analysed in this paper.

本文就不同条件下烯醇式的互变异构的相对含量作一分析.

Furthermore, the absorption spectrum of keto form and enol form obtained from TDDFT theory prove that the hypothesis of photoisomerization from enol form to keto form is reasonable.

另外，用TDDFT方法计算得到的醇式和酮式结构的吸收光谱说明实验室提出的醇式和酮式互变异构反应的光致变色机理是合理的。

The keto form predominates in many aldehydes and ketones, the enol form in phenols.

在许多醛和酮中酮基都是最主要的组分。