Events The 9th International Electronic Conference on Synthetic Organic Chemistry

Event submissions

Published

This submission belongs to the session a. General Organic Synthesis of the event The 9th International Electronic Conference on Synthetic Organic Chemistry

Published date

01 Nov, 2005

Citation

Almudena Perona, Dionisia Sanza, Rosa M. Claramunta, José Elguero, Syntheses and Structural Studies of New Molecules Involving Hydrogen Bonds, in Proceedings of The 9th International Electronic Conference on Synthetic Organic Chemistry, 1 November–30 November 2005, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-9-01472

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Syntheses and Structural Studies of New Molecules Involving Hydrogen Bonds

Almudena Perona ¹

Dionisia Sanza ¹

Rosa M. Claramunta ¹

José Elguero ²

1. Departamento de Química Orgánica y Bio-Orgánica, Facultad de Ciencias, UNED, Senda del Rey 9, E-28040 Madrid, Spain

2. Instituto de Química Médica(CSIC), Centro de Química Orgánica 'Manuel Lora Tamayo', Juan de la Cierva 3, E-28006 Madrid, Spain

Abstract

New Schiff bases have been prepared by reacting 3-hydroxy-4-pyridinecarboxaldehyde with several amines. NMR spectroscopic methods provided clear evidence that the Schiff bases exist in the solid state and in solution as hydroxy/imino tautomers. The study of the stabilities of the tautomeric forms and the different conformers have been approached using density functional calculations (B3LYP/6-31G**).

Keywords

Schiff bases

tautomerism

hydrogen bonds

NMR spectroscopy

density functional calculations

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