Reaction of 1-ethyl-3-methyl-4-imidazoline-2-thione with methyl iodide. Kinetic and thermodynamic aspects.

T Yamada, Y Kondo, S Kusabayashi

Index: Yamada, Tetsuya; Kondo, Yasuhiko; Kusabayashi, Shigekazu Bulletin of the Chemical Society of Japan, 1982 , vol. 55, # 9 p. 2911 - 2916

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Abstract

The reaction of 1-ethyl-3-methyl-4-imidazoline-2-thione with methyl iodide followed simple second order kinetics in polar solvents, whereas in less polar solvents the reverse process made a significant contribution to the overall rate. The solvent effects on the forward rate constant were linearly related to those on the rate of the reaction of tetramethylthiourea with methyl iodide. A plot of ΔV 0\ neweq vs. Δ\ barV° was linear with a slope of 0.33. From the ...