Synthesis of Some New Anils: Part 1. Reaction of 2-Hydroxy-benzaldehyde and 2-Hydroxynaphthaldehyde with 2-Aminopyridene and 2-AminopyrazineReportar como inadecuado


Synthesis of Some New Anils: Part 1. Reaction of 2-Hydroxy-benzaldehyde and 2-Hydroxynaphthaldehyde with 2-Aminopyridene and 2-Aminopyrazine


Synthesis of Some New Anils: Part 1. Reaction of 2-Hydroxy-benzaldehyde and 2-Hydroxynaphthaldehyde with 2-Aminopyridene and 2-Aminopyrazine - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Chemistry Department, Faculty of Science, King Abdul Aziz University, Jeddah 21413, P. O. Box 80203, Saudi Arabia





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Abstract New Schiff bases derived from 2-aminopyridene and 2-aminopyrazine have been synthesized. The UV-Visible spectra of the compounds have been investigated in acetonitrile and toluene. The compounds were in tautomeric equilibrium enol-imine O– H···N, keto-amine O···H–N forms in polar and nonpolar solvents. For some derivatives the keto-amine form was observed in both toluene and acetonitrile. 1H-NMR and IR results showed that all Schiff bases studied favor the enol-imine form over the keto form in a weakly polar solvent such as deuterochloroform. View Full-Text

Keywords: Schiff base; Tautomerism; Keto-enamine; Enol-imine; Solvent effect Schiff base; Tautomerism; Keto-enamine; Enol-imine; Solvent effect





Autor: Abdullah M. Asiri * and Khadija O. Badahdah

Fuente: http://mdpi.com/



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