The 1-(2-nitrophenyl)-2-(2-methylphenyl)-1,4,5,6-tetrahydropyrimidine and its five- and seven-membered ring analogs were synthesized and their conformational properties investigated by low temperature NMR spectroscopy and DFT theoretical calculations. Restricted rotation of the aryl substituents were observed in all cases and the corresponding barriers determined. In the case of the sixmembered ring derivative the additional conformers resulting from a ring inversion process were also detected.

Conformation and stereodynamics of 1,2-diaryltetrahydropyrimidine and of its five- and seven-membered ring analogs

LUNAZZI, LODOVICO;MAZZANTI, ANDREA;
2011

Abstract

The 1-(2-nitrophenyl)-2-(2-methylphenyl)-1,4,5,6-tetrahydropyrimidine and its five- and seven-membered ring analogs were synthesized and their conformational properties investigated by low temperature NMR spectroscopy and DFT theoretical calculations. Restricted rotation of the aryl substituents were observed in all cases and the corresponding barriers determined. In the case of the sixmembered ring derivative the additional conformers resulting from a ring inversion process were also detected.
TETRAHEDRON
J. E. Dìaz; N. Gruber; L. Lunazzi; A. Mazzanti; L. R. Orelli
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/112358
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