Conjugated bifluorophors containing 1,3,5-triphenyl-2-pyrazoline and 2,5-diphenyl-1,3,4-oxadiazole groups
✍ Scribed by B. M. Krasovitskii; V. T. Skripkina; É. G. Yushko; N. A. Popova
- Publisher
- Springer US
- Year
- 1991
- Tongue
- English
- Weight
- 216 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0021-9037
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📜 SIMILAR VOLUMES
The title compound, C 21 H 17 FN 2 , was prepared from phenylhydrazine and 1-phenyl-3-(p-fluorophenyl)-2-propenyl-1ketone. The pyrazolinyl ring forms dihedral angles of 11.87 (12), 8.30 (12) and 65.89 (12) with phenyl rings at the 1 and 3 positions and the fluorophenyl ring, respectively.
The title compound, C 21 H 17 FN 2 , crystallizes with two independent molecules in the asymmetric unit. The pyrazoline and 4-fluorophenyl rings are planar. The phenyl ring at the 5position and the pyrazoline heterocycle are almost perpendicular.
A 2 -p y r a z o l i n e von Walter Ried\*) und Karl Wagner11 Aus dem Institut fur Organische Chemie der Universitat, 6 Frankfurt a. M. Eingegangen a m 25. Oktober 1968 Aus den 2-Hydroxy-phenylhydrazin-hydrochloriden 1 ag und Benzylidenacetophenon werden 1-[2-Hydroxy-phenyl]-3.5-diphenyl-A2-pyrazoIi