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SAGE Publications, Journal of Chemical Research, 4(2002), p. 162-164, 2002

DOI: 10.3184/030823402103171735

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An experimental NMR and semi-empirical theoretical study of the conformation of styrylchromones and styryl alkyl or aryl ketones (benzylidene ketones)

Journal article published in 2002 by Artur M. S. Silva, Diana C. G. A. Pinto ORCID, José A. S. Cavaleiro ORCID, Ana Martínez, Ana Castro, José Elguero
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

The configurations and conformations of styrylchromones and benzylidene ketones were determined by NMR spectroscopy. The cyclisation of the former to xanthones was studied showing clear differences in reactivity. These structural aspects were rationalised with the help of AM1 calculations.