scholarly journals The Influence of the Solvent on Reaction Velocity. XI. Alkaline Hydrolysis of Ethyl Bromide in Acetone-Water Mixtures.

1955 ◽  
Vol 9 ◽  
pp. 825-831 ◽  
Author(s):  
Eero Tommila ◽  
P. J. Antikainen ◽  
Jannik Bjerrum ◽  
Niels Clauson-Kaas
Keyword(s):  
Alkaline Hydrolysis ◽  
Ethyl Bromide ◽  
Reaction Velocity ◽  
Acetone Water ◽  
Hydrolysis Of

Alkaline hydrolysis of glycol esters - A newly suggested criterion in the assessment of anchimeric assistance

1974 ◽  
Vol 27 (11) ◽  
pp. 2325 ◽  
Author(s):  
M Balakrishnan ◽  
Rao G Venkoba ◽  
N Venkatasubramanian
Keyword(s):  
Transition State ◽  
Solvent Effects ◽  
Alkaline Hydrolysis ◽  
Triethylene Glycol ◽  
Binary Solvent ◽  
Solvent Mixtures ◽  
Acetone Water ◽  
Anchimeric Assistance ◽  
Hydrolysis Of ◽  
Suggested Criterion

Solvent effects vis a vis structural effects on the alkaline hydrolysis of various di-and mono-benzoates of glycols have been studied in binary solvent mixtures of dimethyl sulphoxide-water, ethanol-water and acetone-water. It is observed that the higher the stabilization of the transition state by the neighbouring group, the greater is the susceptibility of the reaction to dipolar aprotic solvent acceleration[i.e. k(Me2SO)/k(EtOH) value]. The possibility of employing such solvent effects to evaluate the extent of anchimeric assistance in ester hydrolysis where the neighbouring group can stabilize the transition state is examined. The studies have been extended to triethylene glycol derivatives and it is suggested that dipolar aprotic-protic solvent effects could be used as a kinetic probe for the conformation of the molecule.

Effect of Pressure on the Alkaline Hydrolysis of Ethyl Acetate in Acetone–Water Solutions. Parameters of Activation at Constant Volume

1975 ◽  
Vol 53 (22) ◽  
pp. 3414-3418 ◽  
Author(s):  
M. L. Tonnet ◽  
E. Whalley
Keyword(s):  
Ethyl Acetate ◽  
Solvent Effect ◽  
Internal Energy ◽  
Alkaline Hydrolysis ◽  
Constant Pressure ◽  
Constant Volume ◽  
Acetone Water ◽  
Entropy Of Activation ◽  
Enthalpy And Entropy ◽  
Hydrolysis Of

The effect of pressures up to 3 kbar on the rate of the base-catalyzed hydrolysis of ethyl acetate in acetone–water mixtures has been measured. From these measurements and the enthalpy and entropy of activation at constant pressure measured by others, the internal energy and entropy of activation at constant volume have been obtained as a function of solvent composition. The constant-volume parameters of activation vary with composition in a simpler way than the constant-pressure parameters. It seems likely that theoretical discussions of the solvent effect are easier if they are based on the constant-volume parameters. At low acetone concentrations, the addition of acetone reduces the rate constant at low pressure, but increases it at 3 kbar.

scholarly journals The Influcence of the Solvent on Reaction Velocity. XXIII. The Alkaline Hydrolysis of Ethyl Acetate in Dimethyl Sulphoxide-Water Mixtures.

1963 ◽  
Vol 17 ◽  
pp. 1947-1956 ◽  
Author(s):  
Eero Tommila ◽  
Maija-Leena Murto ◽  
Bodil Jerslev ◽  
Akikazu Hatanaka ◽  
Jon Munch-Petersen
Keyword(s):  
Ethyl Acetate ◽  
Alkaline Hydrolysis ◽  
Dimethyl Sulphoxide ◽  
Reaction Velocity ◽  
Hydrolysis Of

Influence of medium on alkaline hydrolysis of succinic acid monomethyl and monopropyl esters

1980 ◽  
Vol 45 (11) ◽  
pp. 2873-2882
Author(s):  
Vladislav Holba ◽  
Ján Benko
Keyword(s):  
Succinic Acid ◽  
Kinetic Parameters ◽  
Alkaline Hydrolysis ◽  
Specific Interactions ◽  
Nonaqueous Media ◽  
The Media ◽  
Kinetics Of ◽  
Hydrolysis Of

The kinetics of alkaline hydrolysis of succinic acid monomethyl and monopropyl esters were studied in mixed aqueous-nonaqueous media at various temperatures and ionic strengths. The results of measurements are discussed in terms of electrostatic and specific interactions between the reactants and other components of the reaction mixture. The kinetic parameters in the media under study are related to the influence of the cosolvent on the solvation sphere of the reactants.

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