613-94-5Relevant academic research and scientific papers
Highly selective colorimetric fluorescent sensor for Pb2+
Goswami, Shyamaprosad,Chakrabarty, Rinku
, p. 3791 - 3795 (2010)
Phenanthroline-based colorimetric sensors 1 and 2 have been designed, synthesized, and compared with phenanthrene-based receptor 3 for sensing of Pb2+ by color change. Receptor 1 imparts color change (from yellow to red) selectively with Pb2+ in acetonitrile/water (9:1) as well as in methanol/water (9:1) when in the presence of other metal ions studied (Li +, Na+, K+, Ca2+, Mg2+, Ba2+, Fe3+, Co2+, Ni2+, Cu 2+, Zn2+, Cd2+, Hg2+, and Mn 2+ as their Perchlorate salts). Receptor 1 also shows fluorescence enhancement upon addition of lead Perchlorate in acetonitrile/water (9:1) solvent possibly due to the chelation enhanced fluorescence (CHEF) effect. However, the binding behavior of 2 with Pb2+ is found to be less effective compared to that of receptor 1.
A mechanism for the hydrazinolysis of benzoic acid in the presence of ion-exchange catalyst
Dzhumadullaeva,Altynbekova
, p. 1943 - 1945 (2013)
A mechanism for the hydrazinolysis of benzoic acid via cyclic transition states is proposed on the basis of kinetic and IR spectroscopic studies.
Synthesis, characterization, thermal degradation and urease inhibitory studies of the new hydrazide based Schiff base ligand 2-(2-hydroxyphenyl)-3-{[(E)-(2-hydroxyphenyl)methylidene]amino}-2,3-dihydroquinazolin-4(1H)-one
Ikram, Muhammad,Rehman, Sadia,Subhan, Fazle,Akhtar, Muhammad Nadeem,Sinnokrot, Mutasem Omar
, p. 308 - 319 (2017)
The novel Schiff base ligand 2-(2-hydroxyphenyl)-3-{[(E)-(2-hydroxyphenyl)methylidene]amino}-2,3-dihydroquinazolin-4(1H)-one (H-HHAQ) derived from 2-aminobenzhydrazide was synthesized and characterized by elemental analyses, ES+-MS, 1/sup
Synthesis, FTIR, FT-Raman, UV-visible, ab initio and DFT studies on benzohydrazide
Arjunan,Rani,Mythili,Mohan
, p. 486 - 496 (2011)
A systematic vibrational spectroscopic assignment and analysis of benzohydrazide (BH) has been carried out by using FTIR and FT-Raman spectral data. The vibrational analysis were aided by electronic structure calculations - ab initio (RHF) and hybrid dens
A new strategy for fluorometric detection of ascorbic acid based on hydrolysis and redox reaction
Zhao, Yirong,Li, Yinhui,Wang, Yijun,Zheng, Jing,Yang, Ronghua
, p. 35112 - 35115 (2014)
In this study, a near-infrared, indole-cyanine probe, i.e. Cy5-HD, was designed for the detection of ascorbic acid for the first time. The probe has a hydrazone moiety that can be hydrolyzed by Cu2+ to induce the fluorescence quenching of Cy5-H
Protein-Metal-Ion Interactions Studied by Mass Spectrometry-Based Footprinting with Isotope-Encoded Benzhydrazide
Guo, Chunyang,Cheng, Ming,Gross, Michael L.
, p. 1416 - 1423 (2019)
Metal ions, usually bound by various amino-acid side chains in proteins, play multiple roles in protein folding, conformational change, cellular communication, and catalysis. Ca(II) and Mg(II), abundant among biologically relevant cations, execute their c
Kinetic Studies of the Hydrolysis of Furfurylidene Benzoylhydrazone
Abu-Eid, Maher A.,Mahmoud, Foad M.,Al-Nuri, Mohammed A.,Abu Zuhri, Ali Z.
, p. 323 - 328 (1989)
The hydrolysis of furfurylidene benzoylhydrazone, FBH, in hydrochloric acid medium has been found to follow specific acid catalysis, whereas the hydrolysis in universal buffer medium has been found to follow general acid-base catalysis.Mechanisms for the hydrolysis in different acidic media have been postulated.The observed rate constants, secondary rate constants, activation and thermodynamic parameters for the hydrolysis of furfurylidene benzoylhydrazone have been reported.The effect of change in percentage of ethanol in the ethanol-buffer mixture on the rate of hydrolysis has been discussed. - Keywords.Kinetic studies; Hydrolysis; Furfuryl benzoylhydrazone.
Exploration of synthesis, structural aspects, DFT studies and bio-efficacy of some new DHA-benzohydrazide based copper(II) complexes
Richa,Kumar, Sunil,Sindhu, Jayant,Choudhary, Poonam,Jaglan, Sundeep,Zangrando, Ennio,Kumar, Rakesh,Sahoo, Subash C.,Kumar, Vinod,Mehta, Surinder K.,Kataria, Ramesh
, (2021)
A copper (II) complex with ligand obtained by the dehydrative condensation of 3-acetyl-6-methyl-2H-pyran-2,4(3H)?dione (DHA) and benzohydrazide has been synthesized (4). This species was additionally coordinated by various solvent molecules, namely ethano
Synthesis of 2,2-Disubstituted Dihydro-1,4-benzothiazines from Morita-Baylis-Hillman Ketones by an Oxidative Cyclization
Jha, Ajit Kumar,Kumari, Rajkiran,Easwar, Srinivasan
, p. 5760 - 5772 (2022/05/07)
An oxidative cyclization ensued upon interaction of Morita-Baylis-Hillman (MBH) ketones with 2-aminothiophenol in the presence of Cs2CO3, resulting in the formation of new 2,2-disubstituted dihydro-1,4-benzothiazines. The reaction features an aza-Michael addition and an oxidative cyclization involving the formation of a carbon-sulfur bond and works well over a wide range of MBH ketones to deliver the dihydrobenzothiazines in good yields in reasonable reaction times under mild conditions.
Iron-catalyzed oxidative amidation of acylhydrazines with amines
Wang, Yi-Jie,Zhang, Guo-Yu,Shoberu, Adedamola,Zou, Jian-Ping
supporting information, (2021/08/18)
A new approach for amide bond formation via a mild and efficient Iron-catalyzed cross-coupling reaction of acylhydrazines and amines using TBHP as oxidant is described. This protocol is compatible with a wide range of amines and acylhydrazines. In addition, the synthetic application of the reaction is presented.
