1,5-Dimethyl-2-phenyl-4-{[(E)-3,4,5-trimethoxybenzylidene]amino}-1H-pyrazol-3(2H)-one

In the title compound, C21H23N3O4, the pyrazole ring forms dihedral angles of 21.58 (8) and 66.64 (7)° with the benzene and phenyl rings, respectively. The crystal structure is stabilized by weak intermolecular C—H⋯O hydrogen bonds.

[1]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[2]  F. Verpoort,et al.  Ruthenium complexes bearing bidentate Schiff base ligands as efficient catalysts for organic and polymer syntheses , 2005 .

[3]  G. Sheldrick.  A short history of SHELX. , 2008, Acta crystallographica. Section A, Foundations of crystallography.

[4]  S. Skoulika,et al.  Palladium(II) complexes of 4-formylantipyrine N(3)-substituted thiosemicarbazones: first example of X-ray crystal structure and description of bonding properties , 2003 .

[5]  C. Che,et al.  Metal complexes of chiral binaphthyl Schiff-base ligands and their application in stereoselective organic transformations , 2003 .

[6]  Anthony L. Spek,et al.  Structure validation in chemical crystallography , 2009, Acta crystallographica. Section D, Biological crystallography.

[7]  F. Sarkar,et al.  Novel Schiff base copper complexes of quinoline-2 carboxaldehyde as proteasome inhibitors in human prostate cancer cells. , 2006, Journal of medicinal chemistry.

[8]  V. Lanchote,et al.  Albendazole metabolism in patients with neurocysticercosis: antipyrine as a multifunctional marker drug of cytochrome P450. , 2002, Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas.

[9]  Song Gao,et al.  Azide-bridged one-dimensional Mn(III) polymers: effects of side group of Schiff base ligands on structure and magnetism. , 2007, Inorganic chemistry.

[10]  D. Atwood,et al.  Group 13 compounds incorporating Salen ligands. , 2001, Chemical reviews.