Proton NMR spectra were recorded and analysed for 1‐bromo‐4‐nitrobenzene, 2‐bromo‐5‐nitroluene, 3‐bromo‐6‐nitrotoluene and 2‐bromo‐5‐nitro‐p‐xylene, as well as for the corresponding compounds having p‐CH3C6H4S in place of Br. Chemical shifts and coupling constants generally agree with expected values; however, a deshielding effect of the methyl group on aromatic protons was observed in one case.
Effect of Methyl Substituents on the NMR Spectra of Aromatic Protons of Some Nitrobenzene Derivatives / P. Beltrame, P. Carniti, A. Lai, P. Viglino. - In: ORGANIC MAGNETIC RESONANCE. - ISSN 0030-4921. - 7:9(1975), pp. 465-466.
Effect of Methyl Substituents on the NMR Spectra of Aromatic Protons of Some Nitrobenzene Derivatives
P. Beltrame;P. Carniti;
1975
Abstract
Proton NMR spectra were recorded and analysed for 1‐bromo‐4‐nitrobenzene, 2‐bromo‐5‐nitroluene, 3‐bromo‐6‐nitrotoluene and 2‐bromo‐5‐nitro‐p‐xylene, as well as for the corresponding compounds having p‐CH3C6H4S in place of Br. Chemical shifts and coupling constants generally agree with expected values; however, a deshielding effect of the methyl group on aromatic protons was observed in one case.
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