Quaternisation at an Sp2 nitrogen. II. An analysis on the substituent effect and on the nature of the transition state.

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概要

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• The kinetics of <I>N</I>-phenacylation of a number of substituted thiazoles and substituted phenacyl bromides have been investigated in nitrobenzene and in a number of other dipolar aprotic solvents. The rate constants of 2-amino-4-phenylthiazoles and 2-aminobenzothiazoles have been calculated with suitably developed equations. The deviation of the observed values from the calculated results has been ascribed to the steric effect. A seven membered hydrogen bonded transition state has been proposed on the basis of the results obtained from the substituent and medium effect.

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著者

• Sharma A.

  Post-Graduate Department of Chemistry, Sambalpur University

• Behera G.

  Post-Graduate Department of Chemistry, Sambalpur University

関連論文

• Quaternisation at an Sp2 nitrogen. II. An analysis on the substituent effect and on the nature of the transition state.

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