نتایج جستجو برای: phenyl hydrazine

تعداد نتایج: 27849  

Journal: :Molecules 2013
Wan-Sin Loh Ching Kheng Quah Tze Shyang Chia Hoong-Kun Fun Majal Sapnakumari Badiadka Narayana Balladka Kunhanna Sarojini

Four pyrazole compounds, 3-(4-fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole-1-carbaldehyde (1), 5-(4-bromophenyl)-3-(4-fluorophenyl)-4,5-dihydro-1H-pyrazole-1-carbaldehyde (2), 1-[5-(4-chlorophenyl)-3-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]ethanone (3) and 1-[3-(4-fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazol-1-yl]propan-1-one (4), have been prepared by condensing chalcones with hydrazin...

2012
Mehdi Ebadi Wan Jeffrey Basirun Hamid Khaledi Hapipah Mohd Ali

UNLABELLED BACKGROUND The corrosion inhibition performance of pyrazolylindolenine compounds, namely 4-(3,3-dimethyl-3H-indol-2-yl)-pyrazole-1-carbothioamide (InPzTAm), 4-(3,3-dimethyl-3H-indol-2-yl)-1H-pyrazole-1-carbothiohydrazide (InPzTH) and 3,3-dimethyl-2-(1-phenyl-1H-pyrazol-4-yl)-3H-indole (InPzPh),) on copper in 1M HCl solution is investigated by electrochemical impedance spectroscopy...

Journal: :Molecules 2012
Essam Mohamed Sharshira Nagwa Mohamed Mahrous Hamada

Reaction of a series of (E)-3-phenyl-4-(p-substituted phenyl)-3-buten-2-ones with p-sulfamylphenyl hydrazine in glacial acetic acid gave the corresponding hydrazones, subsequent treatment of which with 30% HCl afforded pyrazole-1-sulphonamides. On the other hand, refluxing of chalcones with either thiosemicarbazide or isonicotinic acid hydrazide in ethanol containing a few drops of acetic acid ...

Journal: :Indonesian Journal of Chemistry 2022

The present work describes the synthesis of a variety organotellurium compounds. first part new series compounds containing azomethine groups. Reaction (E)-(4-((1,7,7-trimethyl bicyclo[2.2.1]heptan-2-ylidene)amino)phenyl)mercury(II)chloride and (E)-(5-methyl-2-((1,7,7-trimethylbicyclo[2.2.1]heptan-2-ylidene)amino)phenyl) mercury(II)chloride with tellurium tetrabromide in 2:1 mole ratio yielded ...

2012
Jerry P. Jasinski James A. Golen A. S. Praveen B. Narayana H. S. Yathirajan

Mol-ecules of the title compound, C(26)H(20)N(2)O(2), reside on crystallographic centres of inversion located at the mid-point of the N-N bond. The benzyl-idene ring is essentially coplanar with the central hydrazine group, with an inter-planar angle of 4.5 (2)°, whereas the phenyl ring is oriented at 34.0 (3)° with respect to the mean plane of the central 1,2-dibenzyl-idenehydrazine group. In ...

2016
Sumita Sood

Captan and folpet react with thiophenol in the presence of triethylamine in acetonitrile to form a bis (phenyl) trithiocarbonate which reacts with 2, 4dinitrophenyl hydrazine in the presence of hydrochloric acid to form corresponding hydrazone. The latter is transformed into an intense red quinoidal ion immediately on making solution alkaline. This observation have been made the basis of a simp...

2012
Sammer Yousuf Syed M. Younas Nida Ambreen Khalid M. Khan Ghulam A. Miana

The title compound, C(21)H(24)N(2)O(2), is a phenyl hydrazine derivative of the well known anthelminthic agent α-santonin, which is composed of three fused rings (benzodieneone, cyclo-hexane and γ-lactone). The cyclo-hexa-dienone ring adopts a boat conformation, the cyclo-hexane ring is in a chair conformation and the trans-fused γ-lactone ring adopts a C-envelope conformation. In the crystal, ...

2013
P. C. SANDHYA

A series of novel metal complexes of Schiff bases have been prepared by the interactions of Cu (II) with 1,3 di hydro 3 [2-(Phenyl) – ethylidene]-2H-indol-2-one-hydrazine carboxamide in bimolecular ratios. All the new compounds have been characterized by elemental analysis, conductance measurement, magnetic moment determinations, IR, UV and NMR spectral studies and thermal studies. The physio-c...

2016
Walaa S. El-serwy Neama A. Mohamed Emad M. M. Kassem Khaled Mahmoud M. M Mounier

Different acid chlorides (2a-d) reacted with anthranilic acid to produce 2-substituted-3, 1-benzoxazin-4-one (3a-d) which was used as starting material to synthesize some condensed and non-condensed heterocyclic compounds by reaction with nitrogen nucleophiles e.g., hydrazine hydrate, and formamide. Some of the newly synthesized analogues were chosen to evaluate their cytotoxic activity against...

2009
Zhi-Gang Yin Zong-Lei Fei Heng-Yu Qian Xue-Wen Zhu Chun-Xia Zhang

The title Schiff base compound, C(11)H(9)N(3)O(3), was obtained from a condensation reaction of furan-2-carbaldehyde and 2-nitro-phenyl-hydrazine. The mol-ecule is roughly planar, the largest deviation from the mean plane defined by all non-H atoms being 0.097 (4). An in ntra-molecular N-H⋯O hydrogen bond might influence the planar conformation of the mol-ecule. In the crystal, weak C-H⋯O hydro...

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