The X-ray crystallographic structure of the title compound \_6\_ shows that it is almost planar. This helps to explain a number of peculiar features in the chemistry of a-methylated pyrazolines. The rate of thermal deazetation of azoalkanes R-N=N-R normally depends on the stability of the alkyl radi
1,3,5-Triaryl-Δ2-pyrazoline
✍ Scribed by F. G. Weber; K. Brosche; Ch. Seedorf; A. Rinow
- Publisher
- Springer Vienna
- Year
- 1969
- Tongue
- English
- Weight
- 173 KB
- Volume
- 100
- Category
- Article
- ISSN
- 0026-9247
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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
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.