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Chemistry of 1,1,2,2-tetracyanoethane. 20. Structure of 2,5-diphenyl-3,3,4,4-tetracyanopyrrolidine and 2-N(2′-phenylazopropenyl)-5-phenyl-1-methyl-3,4-dicyanopyrrole

✍ Scribed by A. I. Prokhorov; A. B. Zolotoi; A. N. Lyshchikov; P. M. Lukin; O. E. Nasakin; L. O. Atovmyan

Publisher
SP MAIK Nauka/Interperiodica
Year
1992
Tongue
English
Weight
484 KB
Volume
32
Category
Article
ISSN
0022-4766

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📜 SIMILAR VOLUMES

Chemistry of 1,1,2,2-tetracyanoethane. 1
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✍ A. B. Zolotoi; S. V. Konovalikhin; P. M. Lukin; O. A. D'yachenko; S. P. Zil'berg 📂 Article 📅 1988 🏛 Springer US 🌐 English ⚖ 428 KB

The Michael condensation of l,l,2,2-tetracyanoethane with 3-methyl-4-benzylideneisoxazolin-5-one having the Z configuration leads to a heterocyclic spiran with retention of the cis orientation of the phenyl and keto groups. The deviations of the series of bond angles of the spiran from the standard

2-Methyl-5-{3-[4-(methylsulfonyl)phenyl]
2-Methyl-5-{3-[4-(methylsulfonyl)phenyl]-1,2,4-oxadiazol-5-ylmethylsulfanyl}-1,3,4-thiadiazole
✍ Wang, Pin-Liang ;Zeng, Hai-Shu ;Kang, Si-Shun ;Li, Hai-Ling ;Wang, Hai-Bo 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 266 KB

The title compound, C~13~H~12~N~4~O~3~S~3~, was synthesized __via__ condensation of 1,2,4-oxadiazole chloromethane with 1,3,4-thiadiazolethiol. There are three rings in the molecule. The benzene and oxadiazole rings are coplanar due to the extended aromatic system. The angle between this plane and t