315672-60-7Relevant articles and documents
Thermodynamics and Kinetics of the Reaction between Pyridoxal-5-Phosphate and Hydrazides of 2-Methylfuran-3-Carboxylic and Thiophene-3-Carboxylic Acids in an Aqueous Solution
Gamov,Zavalishin,Kabirov,Usacheva,Sharnin
, p. 192 - 197 (2019)
Abstract: The stability constants of pyridoxal-5-phosphate hydrazones formed with 2-methylfuran-3-carbohydrazide and thiophene-3-carbohydrazide in an aqueous solution at pH 1.9, 6.6, 7.0, and 7.4 are determined via spectrophotometry. The kinetics of the processes of formation and hydrolysis of the Schiff bases are studied, and the constant of the direct and reverse reactions are calculated from the electronic absorption spectra. The stability constants of the Schiff bases are calculated from their ratio. The thermodynamic parameters of the reaction of formation (log K, ΔH, and TΔS) of both hydrazones at pH 6.6 are determined via calorimetry. The reasons for the differences between the equilibrium constants calculated from the data of spectrophotometric and kinetic experiments are discussed, and the reliability of the obtained results is analyzed.
Design, synthesis and anti-influenza virus activity of furan-substituted spirothiazolidinones
Apayd?n, ?a?la Begüm,Tansuyu, Merve,Cesur, Zafer,Naesens, Lieve,G?kta?, Füsun
, (2021)
A new series of N-(3-oxo-1-thia-4-azaspiro[4.5]decan-4-yl)carboxamides have been designed, synthesized and evaluated as antiviral agents. The compounds were prepared by condensation of 2-methylfuran-3-carbohydrazide, appropriate carbonyl compounds and sul
Synthesis, experimental and theoretical study on the structure of some semicarbazides with potential antibacterial activity
Pitucha, Monika,Karczmarzyk, Zbigniew,Kosikowska, Urszula,Malm, Anna
scheme or table, p. 505 - 511 (2011/06/28)
A series of 1,4-disubstituted semicarbazide and 4,4'-bis[1-substituted semicarbazide]diphenyl-methane derivatives were synthesized to explore their antibacterial activity. New compounds were characterized by elemental analysis and spectroscopic data. In order to find the tautomeric equilibrium for the molecules energy calculations for each possible tautomeric form of model compound 2, and for the most antibacterially active compound 7 in the investigated series, were calculated for the gas phase at the RHF/SCF/6-31G** level of theory.