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IR and NMR Spectroscopic Investigation of 3-Halo-2,6-dimethylpyridine N-Oxides and Their 4-Nitro Derivatives

H. Ban-Oganowska and T. Talik

Department of Organic Chemistry, Academy of Economics, PL-53-345 Wroclaw

 

Abstract: IR, 1H  NMR and 13C NMR spectra of 3-halo-2,6-dimethylpyridine N-oxides and their 4-nitro derivatives were recorded. The influence of electron properties of substituents on changes of wavenumbers of nu(N+-O-) bands and chemical shifts 1H  and 13C was analyzed. It was found that the ''ortho-effect'' of 2-methyl group inhibits diamagnetism of halogens.

Full paper in Portable Document Format: 465a315.pdf

 

Chemical Papers 46 (5) 315–318 (1992)

Tuesday, October 04, 2022

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