<abstract xmlns="http://www.w3.org/1999/xhtml">A summary of the preparation methods of 2 tautomeric and 4 <italic>N</italic>-methylated benzimidazoles with a nitro group on the benzene ring (<bold>1–6</bold>) and with an amino group in the same positions (<bold>7–12</bold>) were summarized. Annular tautomerism of the title compounds <bold>1–12</bold> has been studied using 1H, 13C and 15N NMR spectra in liquid and solid state (CPMAS), UV spectra and quantum chemical calculations.</abstract>

A summary of the preparation methods of 2 tautomeric and 4 N-methylated benzimidazoles with a nitro group on the benzene ring (1–6) and with an amino group in the same positions (7–12) were summarized. Annular tautomerism of the title compounds 1–12 has been studied using 1H, 13C and 15N NMR spectra in liquid and solid state (CPMAS), UV spectra and quantum chemical calculations.

Nitro and aminobenzimidazoles

Institute of Organic Chemistry, Catalysis and Petrochemistry, Faculty of Chemical and Food Technology

Acta Chimica Slovaca

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Nitro and aminobenzimidazoles"}

A summary of the preparation methods of 2 tautomeric and 4 N-methylated benzimidazoles with a nitro group on the benzene ring (1–6) and with an amino group in...

Nitro and aminobenzimidazoles

Published Online: Dec 19, 2018

Page range: 182 - 188

DOI: https://doi.org/10.2478/acs-2018-0026

Keywords
X-Nitro-1-methylbenzimidazoles, X-amino-1-methylbenzimidazoles, NMR, preparations, annular tautomerism

© 2018 Viktor Milata, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Nitro and aminobenzimidazoles

Published Online: Dec 19, 2018

Page range: 182 - 188

DOI: https://doi.org/10.2478/acs-2018-0026

KeywordsX-Nitro-1-methylbenzimidazoles, X-amino-1-methylbenzimidazoles, NMR, preparations, annular tautomerism

© 2018 Viktor Milata, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
X-Nitro-1-methylbenzimidazoles, X-amino-1-methylbenzimidazoles, NMR, preparations, annular tautomerism