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4′-(4-Methoxy­phen­yl)-1′-methyl-9H-fluorene-9-spiro-3′-pyrrolidine-2′-spiro-2′′-indan-1′′,3′′-dione

✍ Scribed by Subbiahpandi, A. ;Selvanayagam, S. ;Velmurugan, D. ;Ravikumar, K. ;Jayashankaran, J. ;Raghunathan, R.

Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
119 KB
Volume
61
Category
Article
ISSN
1600-5368

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✦ Synopsis

4 0 0 0 -(4-Methoxyphenyl)-1 0 0 0 -methyl-9H-fluorene-9-spiro-3 0 0 0 -pyrrolidine-2 0 0 0 -spiro-2 0 0 00 0 0 -indan-1 0 0 00 0 0 ,3 0 0

📜 SIMILAR VOLUMES

1′-Methyl-4′-phenyl­acenaphthene-1-spiro
1′-Methyl-4′-phenyl­acenaphthene-1-spiro-2′-pyrrolidine-3′-spiro-2′'-indan-2,1′′,3′′-trione
✍ Govind, M. M. ;Selvanayagam, S. ;Velmurugan, D. ;Ravikumar, K. ;Sureshbabu, A. R 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 328 KB

In the title compound, C 30 H 21 NO 3 , the pyrrolidine ring adopts a twist conformation. The dihedral angle between the indan moiety and the phenyl ring is 75.4 (1) . The structure is stabilized by intramolecular CÐHÁ Á ÁO interactions.

4′-(p-Methoxy­phenyl)-1′-methyl-1H-indol
4′-(p-Methoxy­phenyl)-1′-methyl-1H-indole-3-spiro-2′-pyrrolidine-3′-spiro-1′′-cyclo­pentane-2(3H),2′′-dione
✍ Govind, M. M. ;Selvanayagam, S. ;Velmurugan, D. ;Ravikumar, K. ;Sridhar, Gowri ; 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 368 KB

The indole moiety of the title compound, C 23 H 24 N 2 O 3 , is planar; but the pyrrolidine ring adopts an envelope conformation. The conformation is stabilized by intramolecular CÐ HÁ Á ÁO interactions and the packing of the molecules is stabilized by strong NÐHÁ Á ÁN hydrogen bonds.

2′,7′-Bis(4-methoxy­phen­yl)spiro­[cyclo
2′,7′-Bis(4-methoxy­phen­yl)spiro­[cyclo­propane-1,9′-9H-fluorene]
✍ Wang, Zi-Xing ;Lin, Hai-Yao ;Lu, Ping 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 118 KB

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.

6′′-Methoxy-1′-methyl-4′-phenylacenaphth
6′′-Methoxy-1′-methyl-4′-phenylacenaphthene-1-spiro-2′-pyrrolidine-3′-spiro-3′′-chroman-2,4′′-dione
✍ Augustine, T. ;Ramkumar, V. ;Arul Antony, S. ;Kanakam, Charles. C. 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 549 KB

In the crystal structure of the title compound, C~31~H~25~NO~4~, the five-membered heterocyclic ring is in an envelope conformation and the dihydropyrone ring is in a half-chair conformation.