The structure of the title compound, C 25 H 23 N 3 O 2 , features a central pyrazole ring; an amine NH unit interacts with the ring CO unit through an intramolecular N-HÁ Á ÁO hydrogen bond [NÁ Á ÁO = 2.700 (2) A ˚]
4-[(Z)-(n-Butylamino)(2-furyl)methylene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one
✍ Scribed by Zhang, Heng-Qiang ;Li, Jin-Zhou ;Zhang, Yong ;Zhang, Dan ;Su, Zhan-Hua
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 540 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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📜 SIMILAR VOLUMES
The NH unit on the exocyclic C C double bond in the title compound, C 24 H 21 N 3 O, which is on the same side of the double bond as the C O unit of the pyrazolone ring, interacts with the carbonyl group through an intramolecular N-HÁ Á ÁO hydrogen bond [2.685 (2) A ˚].
In the title compound, C 24 H 18 F 3 N 3 O, the molecule exists in the enamine-keto tautomeric form. The pyrazolone ring makes dihedral angles of 31.8 (2), 45.4 (2) and 71.2 (2) with the 1-phenyl, aniline and methylene-bound phenyl rings, respectively. An intramolecular N-HÁ Á ÁO hydrogen bond helps
There are two molecules in the asymmetric unit of the title compound, C~25~H~23~N~3~O, both of which are stabilized by an intramolecular N—H...O hydrogen bond. The dihedral angles between the pyrazole plane and the attached phenyl ring in the two molecules are 19.9 (2) and 17.7 (2)°.
The NH unit on the exocyclic C C double bond in the title compound, C 25 H 23 N 3 O, interacts with the carbonyl group through an intramolecular hydrogen bond.