54. VISHAKHA MONGA
Information acquired: 2025
VISHAKHA MONGA is an academic who published a paper in 2004 entitled Biologically relevant metal complexes with mixed O, S donor ligands. VISHAKHA MONGA published this work as part of a team: Monga, Vishakha. Here is a description of this work: Thi,, analogues of two 3-hydroxy-4-pyrones (Hma, Hema) and two 3-hydroxy-4, pyridinones (Hmpp, Hdpp) have been synthesized as a new class of ligand precursors. Reacting 3-hydroxy-4-pyrones with Pâ‚‚ Sâ‚... led to the formation of the respective 3, hydroxy-4-pyranthiones (Htma, Hetma) in reasonable yields. One of these pyranthiones, thiomaltol (Htma), was further reacted with aqueous NHâ‚"OH and MeNHâ‚‚ to yield 3, hydroxy-4-pyridinethiones, Hmppt and Hdppt, respectively. During the synthesis of the 3-hydroxy-4-pyridinethiones, their dimeric forms Hmppt-dimer and Hdppt-dimer were also isolated and characterized. Solution studies of the monomeric compounds established that these thio compounds have lower pKa values than the corresponding oxygen analogues, as expected. X-ray crystallographic analyses of Htma and Hetma confirmed that only the carbonyl ox.