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2′,7′-Bis(4-methoxy­phen­yl)spiro­[cyclo­propane-1,9′-9H-fluorene]

✍ Scribed by Wang, Zi-Xing ;Lin, Hai-Yao ;Lu, Ping

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
118 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 29 H 24 O 2 , has mirror symmetry with the cyclopropane C atoms lying on the mirror plane. The fluorene system is essentially planar and makes dihedral angles of 91.43 (4) and 23.50 (6) with the cyclopropane and substituted benzene rings, respectively.

📜 SIMILAR VOLUMES

2,7-Dibromo-9,9-bis­(4-hydroxy­phen­yl)-
2,7-Dibromo-9,9-bis­(4-hydroxy­phen­yl)-9H-fluorene
✍ Nadeau, Nathalie ;McFarlane, Shaune ;McDonald, Robert ;Veinot, Jonathan G. C. 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 291 KB

In the solid state, the title compound, C 25 H 16 Br 2 O 2 , shows significant deviations of the fluorene ring system from planarity. A layered hydrogen-bonded structure is formed that may serve as a model for the solid-state structure of phenol-functionalized polyfluorene.

10′′-(4-Methoxy­benzyl­idene)-5′′,4′-bis
10′′-(4-Methoxy­benzyl­idene)-5′′,4′-bis(4-methoxy­phen­yl)-1′-meth­yl-2,3,2′′,3′′,7′′,8′′,9′′,10′′-octa­hydro-1H,5′′H,6′′H-indole-3-spiro-2′-pyrrolidine-3′-spiro-2′′-cyclo­hepteno[1,2-d]thia­zolo[3,2-a]pyrimidine-2,3′′-dione
✍ Chen, Hong-Liang ;Feng, Ya-Qing ;Hu, Xiao-Fen ;Liu, Xin-Gang 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 149 KB

10 0 0 00 0 0 -(4-Methoxybenzylidene)-5 0 0 00 0 0 ,4 0 0 0 -bis(4-methoxyphenyl)-1 0 0 0 -methyl-2,3,2 0 0 00 0 0 ,3 0 0 00 0 0 ,7 0 0 00 0 0 ,8 0 0 00 0 0 ,9 0 0 00 0 0 ,10 0 0 00 0 0 -octahydro-1H,5 0 0 00 0 0 H,6 0 0 00 0 0 H-indole-3-spiro-2 0 0 0 -pyrrolidine-3 0 0 0 -spiro-2 0 0 00 0 0 -cyclo

10-(4-Methoxy­phen­yl)-3,7-dimethyl-1H,9
10-(4-Methoxy­phen­yl)-3,7-dimethyl-1H,9H,10H-dipyrano[3,4-e:4′,3′-b]pyran-1,9-dione
✍ Gao, Yuan ;Zhang, Yan ;Tu, Shujiang 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 123 KB

The title compound, C 20 H 16 O 6 , was synthesized by the reaction of 4-methoxybenzaldehyde with triacetic acid lactone in ethylene glycol catalyzed by KF-alumina. The pyran ring adopts a boat conformation and the benzene ring is perpendicular to the mean plane through the fused ring system.