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[Novel heterocyclic systems. 6.] Chemistry of the phenoxathiins and isosterically related heterocycles. 27. Two-dimensional J-resolved spectra of 1,4,9-triazaphenoxathiin: The influence of frequency of the position and intensity of resonances due to strong coupling

Martin, G.E., Gampe, Robert T., Ford, Joseph J., Willcott, M. Robert, Morgan, Michael, Ternay, Andew L., Okafor, Charles O. and Smith, Keith 1983. [Novel heterocyclic systems. 6.] Chemistry of the phenoxathiins and isosterically related heterocycles. 27. Two-dimensional J-resolved spectra of 1,4,9-triazaphenoxathiin: The influence of frequency of the position and intensity of resonances due to strong coupling. Journal of Heterocyclic chemistry 20 (4) , pp. 1063-1075. 10.1002/jhet.5570200444

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Abstract

The synthesis of 1, 4, 9-triazaphenoxathiin and the analysis of the two-dimensional J-resolved (2DJ) 1H-nmr spectra of the molecule at 100 and 200 MHz are reported. Due to the strong coupling of the ABX and AB spin systems, additional resonances are observed in the 100 MHz 2DJ spectrum which are diminished in intensity and shifted further from F1 = O Hz in the case of the ABX system at 200 MHz, or which have disappeared in the 200 MHz spectrum in the case of the AB spin system. Calculated frequencies and intensities of the resonances due to strong coupling were found to be in excellent agreement with the observed data.

Item Type: Article
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
Publisher: Wiley
ISSN: 0022-152x
Last Modified: 04 Jun 2017 02:57
URI: http://orca-mwe.cf.ac.uk/id/eprint/14529

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