Several pyridofuroxans were obtained by spontaneous N 2 elimination from the corresponding 2-azido-3nitropyridines. In this particular case, the presence of nitrogen in the pyridine ring must facilitate a cyclic extrusion mechanism. The pyridofuroxans prepared in this study did not present tautomeri
✦ LIBER ✦
2-Sulfiliminopyridines and their oxidation to 2-nitropyridines
✍ Scribed by O. A. Rakitin; O. G. Vlasova; L. I. Khmel'nitskii; I. F. Falyakhov; T. N. Sobachkina
- Publisher
- Springer US
- Year
- 1990
- Tongue
- English
- Weight
- 249 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0009-3122
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## Abstract The static and the second harmonic generation second‐order nonlinear susceptibilities, χ^(2)^, of 3‐methyl‐4‐nitropyridine __N__‐oxide, 2‐carboxylic acid‐4‐nitropyridine‐1‐oxide, 2‐methyl‐4‐nitroaniline, and __m__‐nitroaniline crystals are calculated using a model that combines accurate