enolization


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e·no·li·za·tion

(ē'nol-i-zā'shŭn),
Conversion of a keto to an enol form; for example, CH3-CO-COOH ⇄ CH2=C(OH)COOH.
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Effect of reaction pH on enolization and racemization reactions of glucose and fructose on heating with amino acid enantiomers and formation of melanoidins as result of the Maillard reaction.
Black garlic: transformation effects, characterization and consumer purchase intention
The absence of these signals in the spectra of the complexes indicate coordination through the phenolic oxygen and enolization of the -C=O of the aroyl keto group and consequent deprotonation.
Synthesis and characterization of some dioxomolybdenum(VI) complexes with O,N,O-Donor schiff bases derived from nicotinoyl hydrazone and substituted salicylaldehyde
Strong acidifying effect of the substituents Y and Z is required for enolization. These problems were studied already seventy years ago by Arndt and co-workers [1-4].
Phosphorus-carbon diad tautomerism in phosphonium compounds. Theoretical study/Fosfooniumi uhendite prototroopse tautomeeria teoreetiline uurimine
Our interest in enolizable ketones resulted in a recent paper reporting on the syntheses and enolization of 4-alkyl-2-(2-pyridyl) cyclohexanones (Sund et al., 1991).
Syntheses of some 2-(2-pyridyl) cycloalkanones
From the IR data in Table 7, it was analyzed that L1 acts as a tridentate ligand by coordinating through -O of the deprotonated phenolic group, -O of another deprotonated -OH group formed due to enolization, and -N of the azomethine group.
Characterization of complexes synthesized using Schiff base ligands and their screening for toxicity two fungal and one bacterial species on rice pathogens
The bands in the region of 1437-1440 [cm.sup.-1] in the metal complexes have been assigned to [nu](C-O) [33,39] resulting from enolization and deprotonation before coordination [14, 40].
Synthesis, characterization, and biological activity of N'-[(Z)-(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4-h-pyrazol-4ylidene)(phenyl)methyl]benzohydrazide and its Co(II), Ni(II), and Cu(II) complexes
The reaction mixture was stirred for further 45 minutes to ensure the complete enolization. Then Et3N (1.39 mL, 1.016 g, 10.03 mmol, 1.5 eq) and Et3SiOTf (2.30 mL, 2.652 g, 10.03 mmol, 1.5 eq) were successively added and after 15 minutes the cooling bath was removed.
Towards the Synthesis of Batrachotoxin-Formation of Alkynyl Stannanes
It has been reported in the literature that in alkaline medium sugar will form enediol with the hydroxyl group and also that the rate of enolization is the same as the rate of oxidation [14] However, in the present study, the double reciprocal plots of the pseudo-first-order rate constants against the sugar concentrations were linear (fig.
Kinetics and mechanism of oxidation of sugars by alkaline potassium tetraoxomanganate (VII)
The formation of possible kinetic enolization products (4-oxygenated products) was not observed.
Oxidation of substituted bicyclo[4.4.0]decen-3-ones/Asendatud bitsuklo[4.4.0]detsen-3-oonide oksudeerimine
[5] proposed the acid-catalyzed enolization of ionic mechanism for the first time to explore the synthesis of [alpha]-chloropropanoic acid.
Mechanism of Chlorination Process: From Propanoic Acid to [alpha]-Chloropropanoic Acid and Byproducts Using Propanoic Anhydride as Catalyst
Enolization and Hydration of Cyclic [beta]-Amino Ketones in the Presence of Water.
An Investigation of the Enolization and Isomeric Products Distribution in the Water Promoted Aldol Reaction of Tropinone and Granatanone
This also confirms the deprotonation of imide -NH group through enolization (the appearance of >C=N stretching band observed in IR spectra).
Synthesis, spectral characterization, magnetic moment, mass, X-ray diffraction, and kinetic (TGA) studies of Cr(III) complex with metformin: an oral antidiabetic drug

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