单糖与苯肼作用生成脎的反应是糖类一个非常重要的反应,成脎反应在分离和鉴别糖的过程中起着决定性的作用。关于成脎反应的机理,许多教科书的说法不一。本文拟就葡萄糖与苯肼的反应,谈谈我们的看法。从国内现行有机化学教科书来看,有些对成脎反应的机理避而不谈,这对解释某些实验现象很不 The reaction of monosaccharides and phenylhydrazine to form 脎 is a very important reaction of carbohydrates, and the 脎 reaction plays a decisive role in the separation and identification of sugars. Many textbooks have different opinions about the mechanism of the reaction. This article intends to glucose and phenylhydrazine reaction, talk about our views. According to the current domestic textbooks of organic chemistry, some of the mechanism of the reaction to Cheng Cheng to avoid talking about, which is to explain some of the experimental phenomenon is not