2571-09-7Relevant academic research and scientific papers
2,4-Dinitrophenyl hydrazone derivatives as potent alpha amylase inhibitors
Adil, M.,Ahmad, Shakeel,Faisal, Shah,Haq, Mirajul,Hassan, Amir,Idrees, M.,Kainat,Yousaf, Muhammad,Zia, Huma
, p. 277 - 282 (2021/09/28)
In our current study thirteen new 2,4-dinitrophenyl hydrazone derivatives 1-13 have been evaluated for alpha amylase activity. The molecular docking results indicate that compounds potentially bind in the catalytic site of the enzyme with excellent result. Molecular Operating Environment (MOE) software was used for docking study. 2,4-Dinitrophenyl hydrazone 1-13 have been obtained under reflux conditions by reacting dinitrophenyl hydrazine in methanol with different aromatic as well as aliphatic aldehydes in the presence of acetic acid act as a catalyst. The current results have shown that compounds 5 (IC50 =12.16μg/mL), 6 (IC50 =15.03μg/mL), and 12 (IC50 =16.42 μg/mL) have been found to be the more potent alpha amylase inhibitors as compared to the standard acarbose (IC50 = 42.47μg/mL). These compounds may provide better leads for alpha amylase inhibitor and further assessment of these compounds can be of great help in the discovery of new antidiabetic drugs.
Synthesis, structural characterization, and antioxidant activities of 2,4-dinitrophenyl-hydrazone derivatives
Ahad, Ghulam,Khan, Momin,Khan, Asif,Ibrahim, Mohammad,Salar, Uzma,Kanwal,Khan, Khalid Mohammed,Perveen, Shahnaz
, p. 961 - 973 (2018/10/02)
Thirty-two derivatives of 2,4-dinitro phenylhydrazone 1-32 were synthesized by one step reaction and characterized by spectroscopic techniques such as EI-MS and 1H-NMR. Compounds 1-32 were screened for their in vitro antioxidant activities. DPPH radical s
Correlation analysis of reactivity in the oxidation of substituted benzyl alcohols by benzimidazolium dichromate - A kinetic and mechanistic aspects
Kumar, Pravesh,Panday, Dinesh,Kothari, Seema
, p. 1207 - 1215 (2020/06/27)
The oxidation of a number of para- and meta-substituted benzyl alcohols by benzimidazolium dichromate (BIDC), in dimethyl sulphoxide, leads to the formation of the corresponding benzaldehydes. The reaction is first order with respect to each BIDC and alcohol. The reaction is catalyzed by hydrogen ions and the dependence has the form kobs = a + b[H+]. The oxidation of [1,1-2H2]benzyl alcohol exhibited the presence of a substantial kinetic isotope effect. The rates of the oxidation of meta-substituted benzyl alcohols correlated best with Taft's σ1 and σR0 constants. The para-substituted compounds exhibited excellent correlation with σ1 and σRBA values. The polar reaction constants are negative. The rate of oxidation of benzyl alcohol was determined in nineteen organic solvents. An analysis of the solvent effect by multiparametric equations indicated the greater importance of the cation-solvating power of the solvents. Suitable mechanisms have been discussed.
Preparation, X-ray structure, and reactivity of 2-iodylpyridines: Recyclable hypervalent iodine(V) reagents
Yoshimura, Akira,Banek, Christopher T.,Yusubov, Mekhman S.,Nemykin, Victor N.,Zhdankin, Viktor V.
experimental part, p. 3812 - 3819 (2011/07/08)
2-Iodylpyridine and four examples of 3-alkoxy-2-iodylpyridines were prepared by oxidation of the respective 2-iodopyridines with 3,3-dimethyldioxirane. Structures of 2-iodylpyridine, 2-iodyl-3- isopropoxypyridine, and 2-iodyl-3-propoxypyridine were established by single-crystal X-ray diffraction analysis. 2-Iodyl-3-propoxypyridine has moderate solubility in organic solvents (e.g., 1.1 mg/mL in acetonitrile) and can be used as a recyclable reagent for oxidation of sulfides and alcohols. The reduced form of this reagent, 2-iodo-3-propoxypyridine, can be effectively separated from the reaction mixture by treatment with diluted sulfuric acid and recovered from the acidic aqueous solution by adding aqueous sodium hydroxide.
Structure-Reactivity correlation in the oxidation of substituted benzaldehydes by tetraethylammonium chlorochromate
Gehlot,Prasadrao,Sharma
experimental part, p. 1173 - 1178 (2012/01/05)
Oxidation of 36 monosubstituted benzaldehydes by tetraethylammonium chlorochromate in dimethyl sulphoxide, leads to the formation of corresponding benzoic acids. The reaction is of first order with respect to chlorochromate and aldehydes. The reaction is promoted by H+; the H+ dependence has the form kobs = a + b[H+]. The oxidation of duteriated benzaldehyde exhibits substantial primary kinetic isotope effect. The reaction was studied in 19 different organic solvents and the effect of solvent was analyzed using Taft's and Swain's multiparametric equations. The rates of the oxidation of para- and meta-substituted benzaldehydes showed excellent correlation in terms of Charton's triparametric LDR equation, whereas the oxidation of ortho-substituted benzaldehydes were correlated well with tetraperametric LDRS equation. The oxidation of para-substituted benzaldehydes is more susceptible to the delocalized effect than is the oxidation of ortho- and meta- substituted compounds, which display a greater dependence on the field effect. The positive value of h suggests the presence of an electron-deficient reaction centre in the rate-determining step. The reaction is subjected to steric acceleration by the orthosubstituents. A suitable mechanism has been proposed.
Characterization and thermal analysis of mercury complexes containing intermolecular N→Hg interactions
Sahebalzamani, Hajar,Salimi, Farshid,Ghammamy, Shahriare
experimental part, p. S502-S508 (2012/06/15)
The new mercury (II) compounds with (L1), (L2) of the general formula [Hg(L)2], have been synthesized and characterized by elementalanalysis, electronic and IR, Raman spectra and thermogravimetry and differential thermogravimetry tec
Effect of the micellar surfactant nanoreactors on the reactions of 2,4-dinitrophenylhydrazine with some aldehydes
Doronin,Chernova,Burmistrova
, p. 903 - 907 (2008/12/20)
By thermogravimetry, the IR and electronic spectroscopy physicochemical characteristics of systems including aromatic aldehydes, 2,4- dinitrophenylhydrazine, and a surfactant were investigated. Selective solubilization effect of the cationic surfactant (c
Highly efficient RuCl3-catalyzed disproportionation of (diacetoxyiodo)benzene to iodylbenzene and iodobenzene; leading to the efficient oxidation of alcohols to carbonyl compounds
Yusubov, Mekhman S.,Chi, Ki-Whan,Park, Joo Yeon,Karimov, Rashad,Zhdankin, Viktor V.
, p. 6305 - 6308 (2007/10/03)
(Diacetoxyiodo)benzene (DIB) selectively oxidizes primary and secondary alcohols to the respective carbonyl compounds in the presence of RuCl3 (0.8-1.0 mol %) at room temperature in aqueous acetonitrile. This reaction proceeds via an initial instantaneous Ru-catalyzed disproportionation of DIB to iodobenzene and iodylbenzene with the latter acting as the actual stoichiometric oxidant toward alcohols.
In situ alcohol oxidation-protection reactions
Kiasat,Kazemi,Nourbakhsh
, p. 1555 - 1558 (2007/10/03)
The one-pot conversion of primary and secondary alcohols into phenylhydrazones and 2,4-dintrophenylhydrazones is reported using chromium trioxide supported on silica gel and phenylhydrazines or 2,4- dintrophenylhydrazines under solvent-free conditions. This oxidation arylhydrazone formation reaction has been applied to a range of aliphatic and benzylic alcohols. Copyright Taylor & Francis, Inc.
Dowex polymer-mediated protection of carbonyl groups
Niknam, Khodabakhsh,Kiasat, Ali Reza,Karimi, Sadegh
, p. 2231 - 2236 (2007/10/03)
Dowex (strongly acidic cationic exchange resin) polymer is employed as solid acid catalyst for the clean and less hazardous protection of carbonyl compounds as phenylhydrazones and 2,4-dintrophenylhydrazones in ethanol under reflux conditions. The reactions proceed very smoothly and the yields of the derivatives are excellent. Copyright Taylor & Francis, Inc.
