75607-31-7Relevant academic research and scientific papers
CONDITIONS FOR THE APPLICATION OF ELECTROSTATIC THEORY TO THE KINETICS OF THE REACTIONS OF CONJUGATED CARBONIUM IONS WITH ANIONS IN MIXED AQUENOUS ORGANIC SOLVENTS
Sinev, V. V.,Nikolova, T. A.
, p. 528 - 530 (2007/10/02)
On the basis of an analysis of data on the kinetics of the reaction of conjugated cations of the triarylmethane series with various anions in mixed aquenous organic solvents it was shown that the deviations from electrostatic theory observed for the kinetics of the reactions of cationic substrates with OH- anion are due to transsolvation of the reaction center and to competition from the relay mechanism of transfer of the hydroxide ion with direct nucleophilic displacement of the water from the hydrate shell of the cation.
EFFECT OF STRUCTURAL FACTORS ON THE KINETICS OF THE FORMATION OF DERIVATIVES OF 4-DIMETHYLAMINO-4'-METHOXYTRIPHENYLCARBINOL
Aleksandr, A. V.,Sinev, V. V.,Ginzburg, O. F.,Stepanova, T. F.
, p. 1436 - 1441 (2007/10/02)
The kinetics of the alkaline hydrolysis of a series of subtituted 4-dimethylamino-4'-methoxytriphenylcarbonium ions in water were studied by a spectrophotometric method.The activation parameters of the process were determined.Within the limits of the investigated reaction series there are two isokinetic temperatures, i.e., for donor and acceptor substituents, and accordingly various types of reactivity control.As a result of this the Hammett plots contain an inflection, the degree of which decreases with increase in temperature.The reactivity of the investigated cations with respect to water is practically independent of the substituent.
