Ultraviolet absorption spectra of 2-alkylamino-, 2-phenylamino-,2-morpholino-3-(or 5)-nitro-4-methylpyridines and some 2-alkylamino-3,5-dinitro-4-methylpyridines
✍ Scribed by M. Wandas; A. Puszko; H. Ban-Oganowska
- Publisher
- Springer US
- Year
- 1996
- Tongue
- English
- Weight
- 266 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0009-3122
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## Abstract The dipole moments of twelve 2‐__N__‐substituted amino‐5‐nitro‐4‐methylpyridines (**I‐XII**) and three 2‐__N__‐substituted amino‐3‐nitro‐4‐methylpyridines (**XIII‐XV**) were determined in benzene. The polar aspects of intramolecular charge‐transfer and intramolecular hydrogen bonding we
## Abstract The ^1^H and ^13^C NMR spectra of compounds **1**–**11** and **16**–**22** in CDCl~3~ and DMSO‐__d__~6~ solutions allowed structural assignment to regioisomers **1/5** and **2/6** and their regioselective cyclization products **16–18** utilizing one‐ and two‐dimensional NMR techniques (