1,1,1-Triphenyl-2-Chloroethane과 Pyridine 類의 反應에 關한 反應速度論的 硏究 = Kinetics of the Reaction of 1, 1, 1-Triphenyl-2-Chloroethane with Pyridines

다국어 초록 (Multilingual Abstract)

The rates of the reaction of 1,1,1-triphenyl-2-chloroethane with pyridines in acetonitrile have been measured at 40℃, 50℃ and 60℃ and the activation parameter and the effect of substituent of pyridines were discussed.
The rates increased with electron-donating power of substituents, and the isokinetic relationship was shown between ΔH≠ and ΔS≠. In the Hammett plot except 4-amino group 4-cyano group, and in the plot between logk and pKa except 4-cyano group, they were found as good linearity as following equations.
logk=O.18pKa-2.99
logk=-O.14σ-2.11 (electron-donating group)
logk=-0.10σ-2.11 (electron-attracting group)
From these results, this reaction was found as typical SN2 mechanism with the rate of reaction is determinated by C…N bound-formation at transition state.

목차 (Table of Contents)

• 목차
• Ⅰ. 序論
• Ⅱ. 實驗
• Ⅲ. 結果 및 考察
• Ⅳ. 結論
• 參考文獻