6a-Nitro-6-(2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)-6a,6b,7,8,9,11a-hexahydro-6H-spiro[chromeno[3,4-a]pyrrolizine-11,11′-indeno[1,2-b]quinoxaline]

In the title compound, C39H38N4O8, the quinoxaline and indene subunits are essentially planar, with maximum deviations of 0.071 (2) and 0.009 (2) Å, respectively. The indenoquinoxaline system forms a dihedral angle of 72.81 (3)° with the chromenopyrrolizine system. The two dioxolane rings, as well a...

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Published in:Acta Crystallographica Section E
Main Authors: T. Anuradha, J. Naga Siva Rao, P. R. Seshadri, R. Raghunathan
Format: Article
Language:English
Published: International Union of Crystallography 2014-01-01
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536813032467
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author T. Anuradha
J. Naga Siva Rao
P. R. Seshadri
R. Raghunathan
author_facet T. Anuradha
J. Naga Siva Rao
P. R. Seshadri
R. Raghunathan
author_sort T. Anuradha
collection DOAJ
container_title Acta Crystallographica Section E
description In the title compound, C39H38N4O8, the quinoxaline and indene subunits are essentially planar, with maximum deviations of 0.071 (2) and 0.009 (2) Å, respectively. The indenoquinoxaline system forms a dihedral angle of 72.81 (3)° with the chromenopyrrolizine system. The two dioxolane rings, as well as the pyran ring of the chromeno group and the terminal pyrrolizine, each adopt an envelope conformation with O and C as flap atoms. The central pyrrolizine ring adopts a twisted conformation. Intramolecular C—H...O and C—H...N hydrogen bonds occur. The crystal structure exhibits C—H...O hydrogen bonds, and is further stablized by C—H...π interactions, forming a two-dimensional network along the bc plane.
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spelling doaj-art-38c7d9bcf06147389c19db2ffaf1a3212025-08-19T20:57:37ZengInternational Union of CrystallographyActa Crystallographica Section E1600-53682014-01-01701o38o3910.1107/S1600536813032467im24406a-Nitro-6-(2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)-6a,6b,7,8,9,11a-hexahydro-6H-spiro[chromeno[3,4-a]pyrrolizine-11,11′-indeno[1,2-b]quinoxaline]T. Anuradha0J. Naga Siva Rao1P. R. Seshadri2R. Raghunathan3Post Graduate & Research Department of Physics, Agurchand Manmull Jain College, Chennai 600 114, IndiaDepartment of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, IndiaPost Graduate & Research Department of Physics, Agurchand Manmull Jain College, Chennai 600 114, IndiaDepartment of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, IndiaIn the title compound, C39H38N4O8, the quinoxaline and indene subunits are essentially planar, with maximum deviations of 0.071 (2) and 0.009 (2) Å, respectively. The indenoquinoxaline system forms a dihedral angle of 72.81 (3)° with the chromenopyrrolizine system. The two dioxolane rings, as well as the pyran ring of the chromeno group and the terminal pyrrolizine, each adopt an envelope conformation with O and C as flap atoms. The central pyrrolizine ring adopts a twisted conformation. Intramolecular C—H...O and C—H...N hydrogen bonds occur. The crystal structure exhibits C—H...O hydrogen bonds, and is further stablized by C—H...π interactions, forming a two-dimensional network along the bc plane.http://scripts.iucr.org/cgi-bin/paper?S1600536813032467
spellingShingle T. Anuradha
J. Naga Siva Rao
P. R. Seshadri
R. Raghunathan
6a-Nitro-6-(2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)-6a,6b,7,8,9,11a-hexahydro-6H-spiro[chromeno[3,4-a]pyrrolizine-11,11′-indeno[1,2-b]quinoxaline]
title 6a-Nitro-6-(2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)-6a,6b,7,8,9,11a-hexahydro-6H-spiro[chromeno[3,4-a]pyrrolizine-11,11′-indeno[1,2-b]quinoxaline]
title_full 6a-Nitro-6-(2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)-6a,6b,7,8,9,11a-hexahydro-6H-spiro[chromeno[3,4-a]pyrrolizine-11,11′-indeno[1,2-b]quinoxaline]
title_fullStr 6a-Nitro-6-(2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)-6a,6b,7,8,9,11a-hexahydro-6H-spiro[chromeno[3,4-a]pyrrolizine-11,11′-indeno[1,2-b]quinoxaline]
title_full_unstemmed 6a-Nitro-6-(2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)-6a,6b,7,8,9,11a-hexahydro-6H-spiro[chromeno[3,4-a]pyrrolizine-11,11′-indeno[1,2-b]quinoxaline]
title_short 6a-Nitro-6-(2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)-6a,6b,7,8,9,11a-hexahydro-6H-spiro[chromeno[3,4-a]pyrrolizine-11,11′-indeno[1,2-b]quinoxaline]
title_sort 6a nitro 6 2 2 7 7 tetramethyltetrahydro 3ah bis 1 3 dioxolo 4 5 b 4 5 d pyran 5 yl 6a 6b 7 8 9 11a hexahydro 6h spiro chromeno 3 4 a pyrrolizine 11 11 indeno 1 2 b quinoxaline
url http://scripts.iucr.org/cgi-bin/paper?S1600536813032467
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AT jnagasivarao 6anitro62277tetramethyltetrahydro3ahbis13dioxolo45b45dpyran5yl6a6b78911ahexahydro6hspirochromeno34apyrrolizine1111indeno12bquinoxaline
AT prseshadri 6anitro62277tetramethyltetrahydro3ahbis13dioxolo45b45dpyran5yl6a6b78911ahexahydro6hspirochromeno34apyrrolizine1111indeno12bquinoxaline
AT rraghunathan 6anitro62277tetramethyltetrahydro3ahbis13dioxolo45b45dpyran5yl6a6b78911ahexahydro6hspirochromeno34apyrrolizine1111indeno12bquinoxaline

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