Tetrahedron p. 229 - 236 (1985)
Update date:2022-08-04
Topics:
Mintas, M.
Orhanovic, Z.
Jakopcic, K.
Koller, H.
Stuehler, G.
Mannschreck, A.
N-aryl-4-pyridones 1-6 were synthesized by condensation of the corresponding 4-pyrone with anilines.The enrichment of the enantiomers was achieved by liquid chromatography on triacetylcellulose, enantiomeric purities of (+)-1 and (+)-2 being measured by 1H NMR in the presence of an optically active auxiliary.Barriers to partial rotation about the C-N bond in 1-4 were determined and compared with corresponding biphenyls.
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Doi:10.1016/0584-8539(85)80022-2
(1985)Doi:10.1016/S0039-128X(97)00006-8
(1997)Doi:10.1055/s-1985-31120
(1985)Doi:10.1021/jo00222a009
(1985)Doi:10.1002/jhet.5570250109
(1988)Doi:10.1021/jacs.0c11911
(2021)
