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Citation: Ma Si-Yu, Feng Wen-Lin. Theoretical Study on the Tautomeric Reaction of Acetaldehyde Into Vinyl Alcohol and Ketene Into Ethynol[J]. Acta Physico-Chimica Sinica, ;1992, 8(05): 654-658. doi: 10.3866/PKU.WHXB19920515 shu

Theoretical Study on the Tautomeric Reaction of Acetaldehyde Into Vinyl Alcohol and Ketene Into Ethynol

Ma Si-Yu ,
Feng Wen-Lin

1.
Department of Chemistry, Beijing Normal University, Beijing 100875

Received Date: 10 May 1991
Available Online: 15 October 1992

The tautomeric mechanism of acetaldehyde into vinyl alcohol and ketene into ethynol have been investigated theoretically by ab initio MO method and AM_1 MO method respectively. The geometry of various critical points in reaction pathways had been optimized on the corresponding potential energy surfaces. The reaction heat and the rate constant of the two reactions were also calculated. The results show that the stability of vinyl alcohol is higher than ethynol while the reaction rate of acetalde-hyde into vinyl alcohol is lower than that of ketene into ethynol.
- Vinyl alcohol; Ethynol; Tautomeric reaction; Ab initio; AM1 method
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