乙酸乙酯中可能存在的烯醇式结构与质谱结构解析  

Analyzing an Possibly Existed Enol Form of Ethyl Acetate and Explaining its Mass Spectra

作　　者：魏丰源 Wei Fengyuan(College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430071, Chin)

机构地区：[1]武汉大学化学与分子科学学院,湖北武汉430071

出　　处：《广东化工》2018年第13期4-5,14,共3页Guangdong Chemical Industry

摘　　要：在合成的乙酸乙酯的粗产品中发现了一种乙酸乙酯的同分异构体,质量分数约占4%。通过GC/MS和1HNMR对该异构体的结构进行了分析,结果表明,乙酸乙酯可能存在此前未见报道的烯醇式结构。即乙酸乙酯类化合物亦可能存在类似于醛酮的烯醇式与酮式的互变异构。An isomer of ethyl acetate with content about 4 % was found in the crude product of synthesized ethyl acetate, The structure of the isomer analyzed by the IH NMR and GC/MS showed it is maybe an enol form of ethyl acetate, which was not be found in previous reports. It means a tautnmerism between enol and ketone always found in ketones and aldehydes, may exist in ethyl acetate or other ester compounds.

关 键 词：乙酸乙酯 烯醇式 酮式 气相色谱/质谱 

分 类 号：O622.5[理学—有机化学]