Kinetic Studies of Hantzsch Ester and Dihydrogen Donors Releasing Two Hydrogen Atoms in Acetonitrile.

Autor: Fu YH; College of Chemistry and Environmental Engineering, Anyang Institute of Technology, Anyang, Henan 455000, P.R. China., Geng C; College of Chemistry and Environmental Engineering, Anyang Institute of Technology, Anyang, Henan 455000, P.R. China., Shen GB; School of Medical Engineering, Jining Medical University, Jining, Shandong 272000, P.R. China., Wang K; College of Chemistry and Environmental Engineering, Anyang Institute of Technology, Anyang, Henan 455000, P.R. China., Zhu XQ; Department of Chemistry, Nankai University, Tianjin 300071, P.R. China.
Jazyk: angličtina
Zdroj: ACS omega [ACS Omega] 2022 Jul 22; Vol. 7 (30), pp. 26416-26424. Date of Electronic Publication: 2022 Jul 22 (Print Publication: 2022).
DOI: 10.1021/acsomega.2c02264
Abstrakt: In this work, kinetic studies on HEH 2 , 2-benzylmalononitrile, 2-benzyl-1 H -indene-1,3(2 H )-dione, 5-benzyl-2,2-dimethyl-1,3-dioxane-4,6-dione, 5-benzyl-1,3-dimethylpyrimidine-2,4,6(1 H ,3 H ,5 H )-trione, 2-(9 H -fluoren-9-yl)malononitrile, ethyl 2-cyano-2-(9 H -fluoren-9-yl)acetate, diethyl 2-(9 H -fluoren-9-yl)malonate, and the derivatives (28 XH 2 ) releasing two hydrogen atoms were carried out. The thermokinetic parameters Δ G ⧧ ° of 28 dihydrogen donors (XH 2 ) and the corresponding hydrogen atom acceptors (XH • ) in acetonitrile at 298 K were determined. The abilities of releasing two hydrogen atoms for these organic dihydrogen donors were researched using their thermokinetic parameters Δ G ⧧ °(XH 2 ), which can be used not only to compare the H-donating ability of different XH 2 qualitatively and quantitatively but also to predict the rates of HAT reactions. Predictions of rate constants for 12 HAT reactions using thermokinetic parameters were determined, and the reliabilities of the predicted results were also examined.
Competing Interests: The authors declare no competing financial interest.
(© 2022 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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