Magnetic Resonance in Chemistry p. 883 - 888 (1995)
Update date:2022-08-03
Topics:
Lamartina, Liliana
Spinelli, Domenico
Guerrera, Francesco
Sarva, Maria Concetta
The 13C NMR chemical shift values of (aryl)(2-nitrobenzothiophen-3-yl)amines were measured in DMSO-d6 solutions, suggesting the occurrence of an alternate charge polarization at C-3, C-2, C-3a, C-7a, C-4 and C-5.A dual substituent parameter analysis of the experimental data indicates a large or a low resonance contribution for aryl para and meta substituents, respectively, while the inductive component remains constant throughout. - Keywords: 13C NMR; substituent chemical shifts; anilines; (aryl)(2-nitrobenzothiophen-3-yl)amines; alternate charge polarization
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