Crystal structure of methyl 1-methyl-2-oxospiro[indoline-3,2′-oxirane]-3′-carboxylate

M. P. Savithri, P. S. Yuvaraj, B. S R Reddy, R. Raja, A. SubbiahPandi*, W. T A Harrison (Editor)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
5 Downloads (Pure)


In the title compound, C12H11NO4, the dihedral angle between the indole ring system (r.m.s. deviation = 0.019 Å) and the oxirane ring is 88.8 (2)°. The oxirane O atom and the bridging ester O atom are in an approximate syn conformation [O - C - C - O = - 25.4 (3)°] In the crystal, inversion dimers linked by pair of C - H⋯O hydrogen bonds generate R22(8) loops, where the C - H donor group forms part of the oxirane ring. A second C - H⋯O interaction arising from one of the C - H groups of the benzene ring links the dimers into [001] double chains.

Original languageEnglish
Pages (from-to)o274-o275
Number of pages2
JournalActa Crystallographica Section E: Structure Reports Online
Issue number5
Early online date2 Apr 2015
Publication statusPublished - 1 May 2015


  • Crystal structure
  • Ester
  • Hydrogen bonding
  • Indoline
  • Oxirane
  • Spiro compound


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