Journal of the Chemical Society, Perkin Transactions 2Balakrishnan, M., Rao, G. V., and Venkatasubramanian, N. (1974) Mechanism of alkaline hydrolysis of lactones: Dipolar aprotic versus protic solvent effects as a diagnostic tool. J. Chem. Soc., Perkin Trans. 2, 1093-1096....
These types of solvents are by far the most likely to participate in reactions. There are many examples (too many to list) where a polar protic solvent such as water, methanol, or ethanol can serve as the nucleophile in a reaction, often when a strong electrophile (such as an acid) is ...
"The solvent affects the rate of reaction because solvents may or may not surround a nucleophile, thus hindering or not hindering its approach to the carbon atom. Polar aprotic solvents, like tetrahydrofuran, are better solvents for this reaction than polar protic solvents because polar protic ...
ChemInform Abstract: DIPOLAR APROTIC‐PROTIC SOLVENT INFLUENCES IN THE HYDROLYSIS OF DIOL MONOESTERSesterification, ester hydrolysiscarboxylic acid esters (benzene compounds)doi:10.1002/chin.197428198M. BALAKRISHNANG. VENKOBA RAON. VENKATASUBRAMANIAN
Acetone is an aprotic solvent (Section 10.3) because it does not have hydrogen atoms that can form hydrogen bonds to nucleophiles. The electron pairs of the carbonyl oxygen atom can solvate cations, but not anions. Consequently, anions have greater nucleophilicity in acetone than in protic solvent...
include aprotic and protic solvents. The term “aprotic” is used throughout this review since almost all the electrolytes investigated so far are based on the aprotic solvent. We do not consider protic nonaqueous Li−air battery systems because of a ...
solvent effects/ protic solvent effectaprotic solvent effectmolecular propertiesg-tensorsheteroatomsUB3LYP/EPR-II DFT methodsUPBEO/EPR-II DFT methodsThe UB3LYP/EPR-II, UPBE0/EPR-II and UBP86/EPR-II DFT methods have been applied to study the protic and aprotic solvent effect on the g-tensor ...
Based on previous work, we hypothesized that protic solvents would stabilize the negative ion and produce a greater response. Indeed we found that methanol was the best solvent. We also measured the response of each compound in methanol as a function of applied ESI voltage. Most compounds ...
The article reports on the photoluminescence study of undoped and doped polymers in aprotic and protic solvents. In this study, the optical properties of polyimines (PAs) with structure containing aromatic-aromatic and aliphatic-aromatic moieties are considered. It is shown that the phot...
The density (ρ), refractive index (n_D), dielectric constant (ε_s) and relaxation time (τ) of binary mixture of allyl bromide with polar protic solvent n-butanol including those of the pure liquids, were measured over the complete composition range. The esperimental data is used to ...