title: (Z)-4-[(Ethyl-amino)(furan-2-yl)methyl-idene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one.
abstract: In the crystal of the title compound, C(17)H(17)N(3)O(2), the mol-ecules exist in the keto-enamine form. The pyrazole ring is oriented at 10.59 (4) and 57.98 (5)° to the phenyl and furyl rings, respectively, and the dihedral angle between phenyl and furyl rings is 73.30 (11)°. An intra-molecular N-H⋯O hydrogen bond occurs between imino and carbonyl groups. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into supra-molecular chains along the b axis.
authors.forename: Li-Nan
authors.initials: LN
authors.lastname: Li
authors.forename: Wei-Guo
authors.initials: WG
authors.lastname: Zhang
authors.forename: Shan-Shan
authors.initials: SS
authors.lastname: Huang
authors.forename: Chuan-Xun
authors.initials: CX
authors.lastname: Li
authors.forename: Shou-Yu
authors.initials: SY
authors.lastname: Wang