6′′-Methoxy-1′-methyl-4′-phenylacenaphthene-1-spiro-2′-pyrrolidine-3′-spiro-3′′-chroman-2,4′′-dione

Abstract

Key indicators: single-crystal X-ray study; T = 297 K; mean (C-C) = 0.003 Å; R factor = 0.055; wR factor = 0.160; data-to-parameter ratio = 17.6. organic compounds o4412 # 2007 International Union of Crystallography

1′-Methyl-4′-phenylacenaphthene-1-spiro-2′-pyrrolidine-3′-spiro-3′′-benzo[g]chroman-2,4′′-dione

“…In the crystal structure of the title compound (I) the chromanone moiety consists of a naphthalene ring fused with a six membered heterocyclic ring. The heterocyclic ring adopts an envelope conformation that is also observed in the structure of a a similar compound reported previously (Augustine et al, 2007).…”

3′-Benzoyl-1′-methyl-4′-phenylspiro[acenaphthylene-1(2H),2′-pyrrolidin]-2-one

“…For background on 1,3-dipolar cycloadditions, see: Grigg (1987); Huisgen (1988); Bridges et al (1993); Padwa (1984). For a related structure, see: Augustine et al (2007). For ring conformation analysis, see: Cremer & Pople (1975); Rao et al (1981).…”