Crystal structure of (±)-(5SR,6SR)-6-ethenyl-1-[(RS)-1-phenylethoxy]-1-azaspiro[4.5]decan-2-one

Takeshi Oishi, Shio Yamamoto, Takashi Yokoyama, Akihiro Kobayashi, Takaaki Sato, Noritaka Chida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


In the title compound, C19H25NO2, the pyrrolidine ring adopts an envelope form, with the spiro C atom as the flap, while the cyclohexane ring shows a chair form. A weak intramolecular C - H⋯O interaction supports the molecular conformation, generating an S(6) ring motif. In the crystal, pairs of C - H⋯O interactions connect the molecules into inversion dimers with an R 2 2(16) ring motif. The dimers are linked by a second pair of C - H⋯O interactions, enclosing an R 4 2(12) ring motif, into a tape structure along the b axis.

Original languageEnglish
Pages (from-to)1528-1530
Number of pages3
JournalActa Crystallographica Section E: Crystallographic Communications
Publication statusPublished - 2015


  • N-alkoxy-N-alkylamide
  • crystal structure
  • cyclohexane
  • hydrogen bonding
  • pyrrolidine

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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