Research Article: Methyl (2E)-2-({2-[(2E)-2-benzyl­idene-3-meth­oxy-3-oxoprop­yl]-1,3-dioxoindan-2-yl}meth­yl)-3-phenyl­prop-2-enoate

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): D. Lakshmanan, S. Murugavel, D. Kannan, M. Bakthadoss.


In the title compound, C31H26O6, the five-membered ring of the indane unit adopts a slight envelope conformation with the flap atom displaced by 1.38 (14) Å. The mol­ecular conformation is stabilized by an intra­molecular C—H⋯O hydrogen bond, which generates an S(9) ring motif. In the crystal, pairs of C—H⋯O hydrogen bonds link centrosymmetrically related mol­ecules into dimers, generating R22(22) ring motifs. The crystal packing is further stabilized by C—H⋯π inter­actions.

Partial Text

Indene ring systems are present in a large number of biologi­cally active compounds, and their metallocene complexes are able to catalyse olefin polymerization, see: Rayabarapu et al. (2003 ▶); Senanayake et al. (1995 ▶). For ring puckering analysis, see: Cremer & Pople (1975 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶).