Journal of physical organic chemistry

Kinetics of the reaction of 2??chloro??3??nitro??and 2??chloro??5??nitropyridines with aryloxide ions in methanol

AA El??Bardan

Index: El-Bardan, Ali A. Journal of Physical Organic Chemistry, 1999 , vol. 12, # 4 p. 347 - 353

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Citation Number: 32

Abstract

Abstract The kinetics of the reaction of 2-chloro-3-nitropyridine (ortho-like) and 2-chloro-5- nitropyridine (para-like) with a series of aryloxide ions were studied in methanol at different temperatures. Plots of ΔH≠ versus ΔS≠ for both reactions gave good straight lines with isokinetic temperatures of 168 and 195 C. Good linear relationships were obtained from the plots of log k 2 against σ values with relatively large negative ρ values indicating the ...