1,720,976 research outputs found
THE DISSOCIATIVE ROUTE IN THE ALKALINE HYDROLYSIS OF ARYL 4-HYDROXY-BETA-STYRENESULFONATES
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KINETICS AND MECHANISM OF THE ALKALINE HYDROLYSIS OF 2,4-DINITROPHENYL 4'-HYDROXYPHENYLPROPIOLATE
No full textA NEW "ELONGATED" OXO-KETENE INTERMEDIATE IN THE DISSOCIATIVE HYDROLYSIS OF 2,4-DINITROPHENYL (2E,4E)-5-(4'-HYDROXYPHENYL PENTADIENOATE
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A study on a primitive artificial esterase model. Reactivity of a calix[4]resorcinarene bearing carboxyl groups
No full textCatalysis in the aminolysis of esters in dipolar aprotic solvents: accelerating effect of acetic acid in the reaction of phenyl acetate with n-butylamine in acetonitrile
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The Hydrolysis of 4-Amino- and 4-Dimethylaminobenzene Sulfonyl Chlorides: An Unprecedented Case of Independence of Reactivity from pH
No full textThe reactivity-pH profile for the hydrolysis of 4-aminobenzenesulfonyl chloride 1 has a sigmoid shape with a plateau extending from pH 2 to 11; reactivity of N,N-dimethyaminobenzenesulfonyl chloride 4 is invariant over an even wider pH range (0-14.7). These results, together with the activation data determined at selected pH's for compound 1, are interpreted in light of the occurrence of a reaction mechanism that is dissociative in nature, in which nucleophilic assistance by solvent molecules is given to the amino group of 1 acting as an "internal nucleophile"
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