1H Nmr Spectra and E/Z Isomer Distribution of N-Alkylimines

Salim S. Al-Showiman And Ahmad A- Baosman

Department of Chemistry, College of Science, King Saud University, Riyadh-11451 Saudi Arabia.

ABSTRACT:

There is considerable interest in the stereochemistry of N-alkylimines especially on the study of E/Z isomer distribution and the factors governing isomer ratio, such as steric, electronic, solvent and temperature effects. This review covers, the available data for a series of imines (1) and is based on the recent reports utilizing 1H NMR techniques. R1= Aryl group; R1 R2=Aryl or Alkyl group C=N ~ R3 and R3=Alkyl group R2 The equilibrium distribution of E/Z isomerization of N-alkylimines has been found to be very sensitive to steric and the electronic factor. The solvent and temperature effects play a considerable role in determining the equilibria positions.

KEYWORDS:

Nmr; E/Z; N-Alkylimines

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Copy the following to cite this article: Al-Showiman S. S, Baosman A. A. 1H Nmr Spectra and E/Z Isomer Distribution of N-Alkylimines. Orient J Chem 1988;4(2).

Copy the following to cite this URL: Al-Showiman S. S, Baosman A. A. 1H Nmr Spectra and E/Z Isomer Distribution of N-Alkylimines. Orient J Chem 1988;4(2). Available from: http://www.orientjchem.org/?p=41921