Research Article: Dimethyl 5,5′-methyl­enebis(2-hy­droxy­benzoate)

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Samuel Guieu, Paula Brandão, João Rocha, Artur M. S. Silva.


In the title compound, C17H16O6, the two methyl salicylate moieties are related by crystallographic twofold rotational symmetry with the two benzene rings close to being perpendicular [inter-ring dihedral angle = 86.6 (8)°]. Intra­molecular phenolic O—H⋯O hydrogen bonds with carboxyl O-atom acceptors are present, with these groups also involved in centrosymmetric cyclic inter­molecular O—H⋯O hydrogen-bonding associations [graph set R22(4)], giving infinite chains extending across (101).

Partial Text

For the chemistry and applications of methyl­ene bis­phenol derivatives, see: Ogata et al. (1975 ▶); Méric et al. (1993 ▶); Shrestha et al. (2007 ▶); Cameron et al. (2002 ▶). For the preparation, see: Cushman & Kanamathareddy (1990 ▶); Méric et al. (1993 ▶). For the structures of similar compounds, see: Lu et al. (2011 ▶); Zhang et al. (2009 ▶); Liu et al. (2009 ▶). For graph-set analysis, see Etter et al. (1990 ▶). For bond-length data, see: Allen et al. (1987 ▶).