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Molecules 2007, 12(8), 1796-1804; doi:10.3390/12081796
Article

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

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Received: 24 May 2007 / Revised: 19 July 2007 / Accepted: 19 July 2007 / Published: 13 August 2007
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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.
Keywords: Schiff base; Tautomerism; Keto-enamine; Enol-imine; Solvent effect Schiff base; Tautomerism; Keto-enamine; Enol-imine; Solvent effect
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Asiri, A.M.; Badahdah, K.O. Synthesis of Some New Anils: Part 1. Reaction of 2-Hydroxy-benzaldehyde and 2-Hydroxynaphthaldehyde with 2-Aminopyridene and 2-Aminopyrazine. Molecules 2007, 12, 1796-1804.

AMA Style

Asiri AM, Badahdah KO. Synthesis of Some New Anils: Part 1. Reaction of 2-Hydroxy-benzaldehyde and 2-Hydroxynaphthaldehyde with 2-Aminopyridene and 2-Aminopyrazine. Molecules. 2007; 12(8):1796-1804.

Chicago/Turabian Style

Asiri, Abdullah M.; Badahdah, Khadija O. 2007. "Synthesis of Some New Anils: Part 1. Reaction of 2-Hydroxy-benzaldehyde and 2-Hydroxynaphthaldehyde with 2-Aminopyridene and 2-Aminopyrazine." Molecules 12, no. 8: 1796-1804.


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