Bordwell pKa Table - Organic Chemistry Data
2017年10月27日 · In short, the stronger the acid, the smaller the pKa value and strong acids have weak conjugate bases. pKa values describe the point where the acid is 50% dissociated (i.e. …
pKa Values INDEX Inorganic 2 Phenazine 24 Phosphates 3 Pyridine 25 Carboxylic acids 4, 8 Pyrazine 26 Aliphatic 4, 8 Aromatic 7, 8 Quinoline 27 Phenols 9 Quinazoline 27 Alcohols and …
Note; The pKa values associated with bases is normally meant to refer to the true pKa's of their conjugate acids; i.e., pKa associated with HO- is 15.7, which is the pKa of H2O. This is often …
The pKa Table Is Your Friend - Master Organic Chemistry
2010年6月18日 · To calculate the Isoelectric point of an amino acid or peptide (or protein, if you are daring), you take the pKa of the carboxylic acid (between 2 and 4 usually) and the amine …
Methoxy group - Wikipedia
In organic chemistry, a methoxy group is the functional group consisting of a methyl group bound to oxygen. This alkoxy group has the formula R−O−CH3. On a benzene ring, the Hammett …
D.H. Ripin, D.A. Evans 19-20 9 13 11 24.5 H2 ~36 *Values <0 for H2O and DMSO, and values >14 for water and >35 for DMSO were extrapolated using various methods. HCCH Substrate …
pKa 值-最全的 - 百度文库
pKa Values of Selected Compounds • In structures with more than one proton type, proton corresponding to given pKa is in bold. • Values in parentheses are alternate pKa values given …
Equilibrium pKa Table (DMSO Solvent and Reference) Hydrocarbons 20.117 21.822 22.522 17.317 Ph 18.019 26.122 Fluorenes X X = H 22.61 Me 22.31 Ph 17.91 tBu 24.421 SiMe3 21.5 …
Approximate pKa chart of the functional groups: values to know 1. Protonated carbonyl pKa = ‐7 Other important pKa’s 2. Protonated alcohol or ether pKa = ‐2 to ‐3 H2 = 35 3.
9《有机化学》(第四版)高鸿宾_华南理工大学课件(共十四章)_百度 …
CH3OH ＞ 1 醇 醇 醇 取代酚的酸性影响因数： 酚羟基的邻、对位上有强吸电子时，酸 性增强，吸电子基越多，酸性越强； 酚羟基的邻、对位上有给电子时，酸性 减弱。 此法主要用于硝基酚 …
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