50428-73-4Relevant academic research and scientific papers
INVERSION OF REACTIVITY OF THIOLS IN AdN REACTIONS OF ACETYLENES
Bodrikov, I. V.,Korshunov, S. P.,Bazhan, L. I.,Statsyuk, V. E.,Korzhova, N. V.
, p. 610 - 614 (2007/10/02)
The rate of the reaction of arenethiols with diarylpropynones in the presence of triethylamine is described by a second-order kinetic equation (first in each of the reagents).The effect of the substituent in the aromatic ring of the thiol on the reaction rate is opposite in the regions of low (ρ2 > 0) and high (ρ2 1 (with respect to the substrate) is not inverted.According to the quantum-chemical calculations, the inversion of the reactivity of the thiols is due to a change in the forms in which the reagent participates with variation in the concentration of the catalyst and an associated change in the ratio of the attractive and repulsive interactions between the orbitals of the reagents.
