In the title structure, C 19 H 14 N 4 O 4 , there are two crystallographically independent molecules in the asymmetric unit. The nitro groups are coplanar with the attached benzene rings. The crystal structure is stabilized by weak intermolecular C-HÁ Á ÁO andinteractions.
Some Hydrazones of 5-Phenyl-2,4-thiazolidinedione
✍ Scribed by Sirotenko, Aleksey A.; Ciavarri, Peter A.
- Book ID
- 115447654
- Publisher
- American Chemical Society
- Year
- 1966
- Tongue
- English
- Weight
- 193 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0022-2623
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📜 SIMILAR VOLUMES
In the title compound, C 7 H 6 N 4 O 4 , the molecule is essentially planar and the nitro groups are nearly coplanar with the benzene ring. The crystal structure is stabilized by intermolecular C-HÁ Á ÁO, N-HÁ Á ÁO and C-HÁ Á ÁN interactions, as well as by short OÁ Á ÁO and OÁ Á ÁN contacts.
The molecule of the title Schiff base compound, C 8 H 8 N 4 O 4 , is not planar, with a dihedral angle of 9.3 (2) between the N-N C-C plane and the benzene ring. There is an intramolecular N-HÁ Á ÁO hydrogen bond, and N-OÁ Á Á interactions, which help to stabilize the structure.
The condensation of 5-[4 -(2 -haloethoxy)benzylidenyl]-2,4-thiazolidinediones 2 when separately carried with different 2-amino thiazoles 3 and different sulphanilamides 4 in DMF, using potassium hydroxide in the presence of a catalytic amount of a phase transfer catalyst, gave new 5-[4 -(4 -aryl-thi