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Revista Colombiana de Química
versão impressa ISSN 0120-2804
Resumo
ACELAS, Mauricio et al. Synthesis of new N-phenyl-N-(1-phenylhex- 5-en-1-yl)acetamides and their 1H-NMR conformational study. Rev.Colomb.Quim. [online]. 2013, vol.42, n.1, pp.1-15. ISSN 0120-2804.
Antifungal and antiparasitic activities for N-acetyl derivatives of different N-(prop)butenylamines have been previously evaluated and reported. Consequently, an efficient and versatile synthesis procedure and complete characterization of different N-phenyl-N-(1-phenylhex-5-en-1-yl)acetamides is presented. Two conformational isomers were observed for one of the compounds in their 1H/13C-NMR spectra. The conformational analysis was carried out using the B3LYP functional with the 6-31+G(2d,p) basis and the NMR spectroscopic data. The dihedral angle values of the allylic system obtained by both computational methods and 1H-NMR data analysis (Garbisch's equation) were compared and used to successfully determine the conformational structures and the intramolecular interaction responsible for signal duplicity and chemical shifting respectively.
Palavras-chave : Acetamides; conformational analysis; computational calculation; NMR; Garbisch equation.