1′-Methyl-4′-(1-naphthyl)-1′′,2′′,3′′,4′′-tetrahydroindane-2-spiro-2′-pyrrolidine-3′-spiro-2′′-naphthalene-1,3,1′′-trione

Abstract

In the title compound, C32H25NO3, the pyrrolidine ring adopts an envelope conformation, whereas the cyclo­hexa­none ring in the tetra­hydro­naphthalene fused-ring system adopts a half-chair conformation. The indanedione unit is oriented at an angle of 58.9 (1)° with respect to the naphthyl ring system. Three intra­molecular C—H⋯O close contacts and an intra­molecular C—H⋯π inter­action are observed. In the crystal, mol­ecules associate via C—H⋯O hydrogen bonds, forming a helical chain with a C(10) motif along the b axis.

1′,1′′-Dimethyl-4′-(naphthalen-1-yl)-1,2,3,4-tetrahydronaphthalene-2-spiro-3′-pyrrolidine-2′-spiro-3′′-indoline-1,2′′-dione

“…1. The geometry of pyrrolidine, tetrahydro naphthalin and naphthyl group systems are comparable with the related reported structure (Selvanayagam et al, 2011). Fig.…”

“…Superposition of (I) (violet) with the similar reported structure ofSelvanayagam et al (2011) (cyan).Acta Cryst. (2011).…”

“…For general background to pyrrolidine derivatives, see: Obniska et al (2003); Peddi et al (2004); Kaminski & Obniska (2008); Stylianakis et al (2003). For related structures, see: Selvanayagam et al (2011); Gans & Shalloway (2001). For ring-puckering parameters, see: Cremer & Pople (1975) and for asymmetry parameters, see: Nardelli (1983).…”

3′-[Hydroxy(4-oxo-4H-chromen-3-yl)methyl]-2-oxospiro[indoline-3,2′-pyrrolidine]-3′-carbonitrile

“…The bond lengths and angles in (Fig. 1) agree with those observed in other pyrrolidine derivatives (Selvanayagam et al, 2011). The sum of the angles at N1 of the pyrrolidine ring [337.3 (2)°] is in accordance with sp 3 hybridization.…”

“…For ring puckering parameters, see: Cremer & Pople (1975) and for asymmetry parameters, see: Nardelli (1983). For the structure of another pyrrolidine derivatie, see: Selvanayagam et al (2011).…”