Shu,A. M. Tian.Solvent-assisted catalysis mechanism on keto-enol tautomerism of cyameluric acid. Journal of Molecular Structure . 2005Liang X, Zheng W, Wong NB, Shu Y, Tian A (2005) Solvent- assisted catalysis mechanism on Keto-enol tautomerism of cya- meluric acid. J Mol Struct ...
Since a radical mechanism has been proved, it is postulated that radicals result from keto hydroperoxides which have been formed from the aryl-substituted enols via autoxidation. Steric effects and resonance may partly account for differences in the catalytic activity of some and for the inhibiting ...
DURING some polarographical investigations of certain 伪-aminoketones 1 and on the elimination of Mannich bases 2 experimental data were gathered, which can be explained by the occurrence of keto-enol transformation. Though considerable attention has been paid to the mechanism of polarographical ...
Ketoandenoltautomers酮和烯醇互变异构体 Chapter13 α-SubstitutionandCondensationsofEnolsandEnolate Text1:Chapter22,p1003-1056Text2:11,13章 13.1Enolsandenolateions（烯醇和烯醇负离子）OHB:O - O H HB HO+B Resonance-stabilizedanionKetoform(酮式，Stable)烯醇阴离子，Enolateion OHH+HOHHOH-H+ Enol...
The population of subsurface H is also accompanied by a change in the mechanism of enol stabilization via hydrogen bonding: while in the presence of subsurface H specific enol-containing dimers are predominately formed, which strongly interact via the enol-acetyl or enol鈥揺nol groups, in the ...
On the Mechanism of Oscillatory Changes of the Retardation Factor (RF) and the Specific Rotation [α]D with Selected Solutions of S‐... Keto‐enol tautomerism is catalyzed in a basic environment and is hampered in acid. In our study focused on the molecular‐level mechanism of the ... ...
This complex reaction is characterized by aketo-enol tautomerism equilibrium and ester exchange reaction. 该复杂反应的特征在于酮-烯醇互变异构平衡和酯交换反应。 3. The photo product was determined to be theketoform. 确定了光致变色的产物为双质子转移的酮式结构。
mechanism suggests that the electrons transfer from Bpy to Tp section is more efficient in TpBpy-NS than that in TpBpy-2-NS, and a C2d are the optimal OER path. The conclusion of this work should be effective for other types of COFs and the atomic level N-site controllable strategy ...
One has the form in which the OH group of 7HQ is hydrogen-bonded to the oxygen of CH3OH, and the other has the form in which the OH group of CH3OH is hydrogen-bonded to the nitrogen of 7HQ. For 7HQ-(CH3OH)2 and -(CH3OH)3, their structures were determined to be "enol ...
Role of Keto-Enol Tautomerism in the Polarographical Reduction of Some Carbonyl Compounds Though considerable attention has been paid to the mechanism of polarographical reduction of carbonyl compounds 3 , no experimental evidence has been adduced for the participation of the keto-enol tautomerism in ...