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✦   LIBER   ✦

Methyl 1′-(2-hydr­oxy-1,3-dioxo-2,3-dihydro-1H-indan-2-yl)-2-oxo-5′,6′,7′,7a′-tetra­hydro­spiro­[1H-indole-3,3′(2H,2′H)-1′H-pyrrolizine]-1′-carboxyl­ate

✍ Scribed by Kumar, B. K. Satis ;Gayathri, D. ;Velmurugan, D. ;Ravikumar, K. ;Ramesh, E.

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
291 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

The two pyrrolidine rings in the title compound, C~25~H~22~N~2~O~6~, adopt envelope conformations. Molecules are stabilized by intramolecular O—H...O hydrogen bonds, and linked into centrosymmetric dimers by intermolecular N—H...O hydrogen bonds.

📜 SIMILAR VOLUMES

2′-Benzo­yl-1′-(4-chloro­phen­yl)-5′,6′,
2′-Benzo­yl-1′-(4-chloro­phen­yl)-5′,6′,7′,7a′-tetra­hydro­spiro­[indan-2,3′(2′H)-1H-pyrrolizine]-1,3-dione
✍ Kalyanasundaram, S. ;Selvanayagam, S. ;Velmurugan, D. ;Ravikumar, K. ;Poornachan 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 494 KB

The title compound, C 28 H 22 ClNO 3 , has two crystallographically independent molecules in the asymmetric unit. The pyrrolidine ring (A) of the pyrrolizine system adopts an envelope conformation in both molecules, whereas the other five-membered ring (B) adopts an envelope conformation in one mole

2′-(p-Methoxy­benzoyl)-1′,2,2′,3,5′,6′,7
2′-(p-Methoxy­benzoyl)-1′,2,2′,3,5′,6′,7′,7a′-octa­hydro-1H-indan-2-spiro-3′-(3′H-pyrrolizine)-1′-spiro-3′′-1H-indoline-1,2′′,3-trione
✍ Seshadri, P. R. ;Selvanayagam, S. ;Velmurugan, D. ;Ravikumar, K. ;Sureshbabu, A. 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 317 KB

The pyrrolidine ring of the title compound, C 30 H 24 N 2 O 5 , adopts a half-chair conformation. The structure is stabilized by CÐHÁ Á ÁO intramolecular interactions and the packing of the molecules is stabilized by CÐHÁ Á ÁO and NÐHÁ Á ÁO intermolecular interactions.

2′-Benzoyl-1′,2,2′,3,4′,5′,6′,6a′-octa­h
2′-Benzoyl-1′,2,2′,3,4′,5′,6′,6a′-octa­hydro-1H-indan-2-spiro-3′-(3′H-pyrrolizine)-1′-spiro-3′′-1H-indoline-1,2′′,3-trione
✍ Seshadri, P. R. ;Selvanayagam, S. ;Velmurugan, D. ;Ravikumar, K. ;Sureshbabu, A. 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 333 KB

Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.003 A Ê R factor = 0.060 wR factor = 0.171 Data-to-parameter ratio = 16.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.