Your instructor may have glossed over the tautomerism part at the time, saying something like, “you’ll learn more about this in Org 2.” Well, the moment has arrived. 3. Some Examples of Keto-Enol Tautomerism Here are a few more examples of keto-enol tautomerism. You might recall that...
Study of Mechanism Keto-Enol Tautomerism (isomeric reaction) structure Cyclohexanone by using DFT Method with NBO AnalysisReza Soleymani
Guanine and 9-methylguanine monomers and their keto—enol tautomerism Infrared absorption spectra have been studied for matrix isolated guanine and 9-methylguanine, which is a formal analogue of the natural nucleoside found i... K Szczepaniak,M Szczesniak - 《Cheminform》 被引量: 584发表: 1987年 ...
The mechanism is... F Duarte,A Toro-Labbé - 《Molecular Physics》 被引量: 27发表: 2010年 DFT ab initio study of the keto-enol tautomerism of barbituric acid Eight possible tautomeric forms of barbituric acid have been studied using the Gaussian-98 program at a B3LYP/D95** level of ...
The equilibrium constant for keto–enol tautomerism of 2-phenylacetylthiophene (2PAT) KT = [enol]/[ketone] has been determined as 3.55 × 10–7 (pKT 6.45) by combining rate constants for enolisation and ketonisation. The pKaKH for ionisation of 2PAT has been measured spectrophotometrically...
TautomerismInitial quantum mechanic studies and density function theory (DFT) in the level of HF/6-311+G**, B3LYP/3-21+G* and B3LYP/6-311+G** on Keto-Enol Tautomerism (isomeric reaction) cyclohexanone structure, that results shows that activation energy for this reaction equal 64.6143(kcal....
Liang 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 THEOCHEM 732(1-3):127-137. doi:10.1016/j.theochem.2005.05.009X. Q. Liang,W. X. Zheng,N. B. Wong,Y. J. Shu,A. M. Tian....
TautomerismAcyclic nucleosides, which exhibit significant antiviral activity, are usually synthesised using traditional chemical strategies. However, the efficient and selective formation of carbon‐carbon bonds using small organic molecules as catalysts provides a promising alternative route for the sustainable ...
ChemInform Abstract: MECHANISM OF THE KETO-ENOL TAUTOMERISM IN RADICAL CATIONS AND GAS-PHASE CLOSED-SHELL SYSTEMSdoi:10.1002/chin.198010061J. S. SPLITTERM. CALVINChemischer Informationsdienst
The PM3 calculations have been carried out to obtain the information on the preferred conformations of the tautomers and on the mechanism for the tautomerism. The results suggest the involvement of a solvent molecule in the equilibrium process.doi:10.1080/00387019808003262...