Synthesis of 2-Azulenyl-1,1,4,4-tetracyano-3-ferrocenyl-1,3-butadienes by [2+2] Cycloaddition of (Ferrocenylethynyl)azulenes with Tetracyanoethylene
β Scribed by Shoji, Taku; Ito, Shunji; Okujima, Tetsuo; Morita, Noboru
- Book ID
- 125853440
- Publisher
- John Wiley and Sons
- Year
- 2013
- Tongue
- English
- Weight
- 835 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0947-6539
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π SIMILAR VOLUMES
## Abstract The reaction of NβarylβCβethoxycarbonyl nitrilimines with [1,2,4]triazepinβ3,5βdithione leads to title compounds. The 1,3βdipolar cycloaddition is completely peri and regioselective. The preferred orientation of addition is predicted correctly by AM~1~ calculation.
cycloaddition reactions of I-aryl-4-dimethylamino-1,3diaza-1,3-butadienes (~),l-aryl-4-dimethylamino-2-methylthio-l,3-diaza-l,3butadienes 12). l-aryl-4-methylthio-2-phenyl-4-sec.amino-l,3-diaza-l,3butadienes ( 2) and 4, 4-bis~sec.amino~-l,2-diphenyl-l,3-diaza-l,3-bu~adienes 112) with monophenylketen