Hydrazine and its derivatives play an important role as ligands in coordination chemistry [1], Hy­ drazine complexes may occur as intermediates in ni­ trogen fixation and related processes [2]. Although a variety of hydrazine complexes are known the electronic spectra and photoreactivity of such com­ pounds have not yet been studied. Owing to its pe­ culiar electronic structure and redox behavi...

THE TITLE COMPOUND (SYSTEMATIC NAME 1,1',2,2'-tetra-phenyl-2,2'-azinodiethanone), C(28)H(20)N(2)O(2), was obtained by the reaction of benzil monohydrazone with chromium(III) nitrate. The dibenzyl-idene hydrazine unit is nearly planar (r.m.s. deviation = 0.073 Å) and the two benzoyl units are oriented almost perpendicular to it [dihedral angle = 87.81 (2), 87.81 (2)°]. The mol-ecules are linked ...

In a recent article in the Journal of Biological Chemistry 2 is reported a study of the influence of hydrazine upon the intermediary metabolism in the dog, by Professor F. P. Underhill and I. S. Kleiner, in which it is shown that although this poison produces extensive anatomical alterations in the liver of dogs, yet it causes little change in the partition of urinary nitrogen and sulphur, beyo...

In the title compound, C12H13N2 (+)·Cl(-), the chloride salt of 1,1'-di-phenyl-hydrazine, the phenyl rings are inclined to one another by 78.63 (17)°. The N-(+)NH3 bond lengths is 1.445 (3) Å, and the N-Cphen-yl bond lengths are 1.435 (3) and 1.447 (4) Å. In the crystal, mol-ecules are linked via N-H⋯Cl hydrogen bonds, forming chains along [10-1], which enclose two adjacent R (4) 2(6) ring moti...

Eight different derivatives of substituted 5-phenyl-1-(5-substituted phenyl) -4,5-dihydro1H-pyrazol-3-yl)-1H-tetrazole (4a-h) were synthesized by reacting the chalcones with hydrazine hydrate in presence of glacial acetic. The chemical structures were confirmed by means of FT-IR, H-NMR, mass spectra and elemental analysis. The compounds were screened for analgesic activity by acetic acid induce...

In the title Schiff base compound, C(12)H(15)N(3)O(2), obtained from a condensation reaction of cyclo-hexa-none and 2-nitro-phenyl-hydrazine, the phenyl-hydrazone group is planar, the largest deviation from the mean plane being 0.0252 (12) Å, and the nitro fragment is twisted slightly with respect to the mean plane, making a dihedral angle of 6.96 (17)°. The cyclo-heaxanone ring displays a chai...

New tetrahydrocarbazole derivatives substituted at the heteroatom (N) by non-steroidal anti-inflammatory drug (NSAIDs) were synthesized reaction of cyclohehexanon (C.H.N.) with phenyl hydrazine (P.H.Z.) to form (THCZ), where latter is reacted NSAID (Ketoprofen) via amide bond yield
 THCZ, compounds chemical structures verified by: 1H, 13C NMR and FTIR spectroscopy.
 Antifungal activit...

A series of 1-phenyl-3-aryl-5-(4-(3-propanoloxy) phenyl)-1H-pyrazoles were synthesized from chalcones and studied for their in vitro antibacterial activity. Chalcones i.e.,1-aryl-3-(4hydroxyphenyl) prop-2-en-1-ones (1) on reaction with phenyl hydrazine in presence of acetic acid and few drops of HCl yielded the corresponding 1-phenyl-3-aryl-5-(4-hydroxyphenyl)-1H-pyrazoles (2) which on further ...

A series of 1-phenyl-3-aryl-5-(4-(2-ethanoloxy) phenyl)-1H-pyrazoles were synthesized from chalcones and studied for their in vitro antibacterial activity. Chalcones i.e.,1-aryl-3-(4hydroxyphenyl) prop-2-en-1-ones, 1 on reaction with phenyl hydrazine yielded the corresponding 1-phenyl-3-aryl-5-(4-hydroxyphenyl)-1H-pyrazoles 2 which on further reaction with 3-chloroethanol furnished the title co...