Research Article: (E)-N′-(3-Eth­oxy-4-hy­droxy­benzyl­idene)-4-meth­oxy­benzohydrazide

Date Published: March 01, 2012

Publisher: International Union of Crystallography

Author(s): Hoong-Kun Fun, Premrudee Promdet, Jirapa Horkaew, Chatchanok Karalai, Suchada Chantrapromma.


In the mol­ecule of the title benzohydrazide derivative, C17H18N2O4, the dihedral angle between the benzene rings is 6.86 (11)°. The meth­oxy group of the 4-meth­oxy­phenyl fragment deviates slightly [Cmethyl—O—C—C = 10.0 (4)°] with respect to the benzene ring, whereas the eth­oxy group of the 3-eth­oxy-4-hy­droxy­phenyl fragment is is almost coplanar [C—O—C—Cmethyl = 178.5 (2)°]. In the crystal, mol­ecules are linked by N—H⋯O, O—H⋯O and C—H⋯O hydrogen bonds into a two-dimensional network parallel to the ab plane. C—H⋯π inter­actions and C⋯O [2.980 (3) Å] short contacts are also observed.

Partial Text

For bond-length data, see: Allen et al. (1987 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). For related structures, see: Fun et al. (2011 ▶); Horkaew et al. (2011 ▶); Promdet et al. (2011 ▶). For background and applications to benzohydrazide derivatives, see: Bedia et al. (2006 ▶); Loncle et al. (2004 ▶); Raj et al. (2007 ▶).