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5-Fluoro-6'H,7'H,8'H-spiro-[indoline-3,7'-pyrano[3,2-c:5,6-c']di-1-benzopyran]-2,6',8'-trione
Journal article   Open access  Peer reviewed

5-Fluoro-6'H,7'H,8'H-spiro-[indoline-3,7'-pyrano[3,2-c:5,6-c']di-1-benzopyran]-2,6',8'-trione

Abdulrahman I Almansour, Raju Suresh Kumar, Natarajan Arumugam, P Devi Shree and J Suresh
Acta crystallographica. Section E, Structure reports online, Vol.68(Pt 3), pp.o744-U2322
01/03/2012
DOI: https://doi.org/10.1107/S1600536812006332
PMID: 22412623

Abstract

In the title compound, C(26)H(12)FNO(6), the central pyran ring and both benzopyran systems are nonplanar, having total puckering amplitudes of 0.139 (2), 0.050 (1) and 0.112 (2) Å, respectively. The central pyran ring adopts a boat conformation. The crystal structure is stabilized by C-H⋯O, N-H⋯O, N-H⋯F and C-H⋯π inter-actions.
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