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概述了碳碳双键在气相中无催化环氧化反应研究方法、反应机理,测定了2-甲基丙烯醛与过氧化乙酰基在393K和413K时环氧化反应的速率.实验结果表明,不同结构烯烃的环氧化反应速率主要取决于双键所连取代基的性质,取代基的给电子能力越强环氧化反应速率越快.
In this paper, the research methods and reaction mechanism of non-catalytic epoxidation of carbon-carbon double bond in the gas phase are summarized. The epoxidation reaction rate of 2-methacrolein and acetyl peroxide at 393K and 413K is measured. The experimental results show that, The epoxidation reaction rates of olefins with different structures mainly depend on the nature of the substituents attached to the double bond. The stronger the electron donating ability of the substituents, the faster the epoxidation reaction rate.