4-[(Z)-(2-Furyl)(2-naphthylamino)methylene)]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one

Abstract

The title compound, C25H19N3O2, crystallizes as discrete mol­ecules which are well ordered through one intra­molecular N—H⋯O hydrogen bond. Structural analysis indicates that the mol­ecules exist as the amine–one form.

(Z)-4-[(Ethylamino)(furan-2-yl)methylidene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one

“…A strong intramolecular hydrogen bond N3-H3A•••O1 (Table 1) is also indicative of the enamine-keto form. All bond lengths and angles are normal and comparable with those found in the related compounds (Zhang et al, 2007;Li et al, 2009;Wang, 2010).…”

“…For general background to acylpyrazolones, see: Dong et al (1983); Casas et al (2007). For related structures, see: Zhang et al (2007); Li et al (2009); Wang (2010).…”

(4Z)-4-[(2,6-Diisopropylanilino)(phenyl)methylidene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one

“…The dihedral angles between the pyrazolone ring and C5-C10, C12-C17 and C18-C23 phenyl rings are 20.7 (3), 65.8 (3) and 72.6 (3)°, respectively. The C11-N3 distance of 1.333 (3) Å is similar to that for a C-N single bond (1.338 (8) Å (Li et al, 2009) but is much longer than that for a C=N double bond (1.318 (3)Å) (Lü et al, 2006)…”

“…For the catalysis of olefins polymerization by complexes containing N,O-bidentate ligands, see: Wang et al (1998); Connor et al (2003); Sun et al (2003); Lü et al (2006). For related structures, see: Wang et al (2003); Li et al (2009); Xu et al (2010).…”

Synthesis, Chemical Characterization, and Biological Screening for Cytotoxic and Antitumor Activityof Novel p-Chlorophenyl Maleanilic Acid and Its Corresponding Chelates

“…They also can be used as a protective and curative fungicide [15]. They are used as essential materials in polymer chemistry (i.e., as photoinitiators for free-radical polymerization and monomers in polymaleimides and copolymers synthesis) [16,17].…”