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Darstellung von Thiopheno [2,3-d]-, 6,7,8,9-Tetrahydrobenzo[b]thiopheno[2,3-d]- und Cyclohepteno[b]thiopheno[2,3-d] 1,3-thiazinen

✍ Scribed by Siegfried Leistner; Günther Wagner

Publisher
Wiley (John Wiley & Sons)
Year
2010
Weight
251 KB
Volume
17
Category
Article
ISSN
0044-2402

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✦ Synopsis

Die Cyclisierung I + II/III gelingt bei Ii nicht. Dem entsprechenden Imidazolderivat gleichend [4], ist auch das I:,,analoge" N-[l-p-Nitrophenyl-3-methyl-i-nitropyrazolyl-(5)]-glycin nicht cyclisierbar. Wiihrend l-Ethyl-2-methyl-4-nitro-b-piperidinoimidazol durch heiBe Mineralsiiuren [lo], [ll] unter Entwicklung nitroser Case

📜 SIMILAR VOLUMES

5-(4-Fluorophenyl)-1,3,7,9-tetramethylpy
5-(4-Fluorophenyl)-1,3,7,9-tetramethylpyrido[2,3-d:6,5-d]dipyrimidine-2,4,6,8(1H,3H,7H,9H)-tetrone
✍ Ghorbani, Hosein ;Bazgir, Ayoob 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 659 KB

The asymmetric unit of the title compound, C 19 H 16 FN 5 O 4 , contains two independent molecules. The dihedral angles between the main planes and the fluorophenyl rings in the two molecules are 83.24 (5) and 71.76 (4) . Weakstacking interactions may be effective in the stabilization of the crystal