14503-46-9Relevant articles and documents
KINETICS OF SULFONATION OF AMINES OF THE BENZENE SERIES IN APROTIC SOLVENTS
Khelevin, R. N.
, p. 2276 - 2283 (2007/10/02)
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KINETICS OF THE SULFONATION OF AMINES OF THE BENZENE SERIES BY CHLOROSULFONIC ACID
Khelevin, R. N.
, p. 1709 - 1713 (2007/10/02)
The kinetics of the sulfonation of amines of the benzene series by an equimolar amount of chlorosulfonic acid in o-dichlorobenzene were studied.It was shown that the sulfonation of aniline and N-alkylanilines is described by a second-order kinetic equation for irreversible reactions.The sulfonation of N,N-dialkylanilines by chlorosulfonic acid is described by a first-order kinetic equation for irreversible reactions.The observed relationships are explained by different mechanism for the sulfonation of amines of the benzene series by chlorosulfonic acid.The sulfonation of aniline and N-alkalynilines takes place by direct reaction between the unprotonated molecules of the amines and the HSO3(1+) ion, whereas in the reaction of chlorosulfonic acid with N,N-dialkylanilines complexes of the N,N-dialkylanilines with sulfur trioxide (dialkylanilinesulfotrioxides) are formed initially and then rearrange to the corresponding para-aminosulfonic acids.
ORIENTATION OF SULFO GROUP DURING SULFONATION OF AMINES OF THE BENZENE SERIES IN THE PRESENCE OF MERCURIC SULFATE
Khelevin, R. N.
, p. 179 - 183 (2007/10/02)
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