<i>Z</i>,<i>E</i>-Isomerization mechanism for<i>N</i>-arylthio-1,4-benzoquinonimines: DNMR and DFT investigations
作者:V. V. Pirozhenko、A. B. Rozhenko、A. P. Avdeenko、S. A. Konovalova、A. A. Santalova
DOI:10.1002/mrc.2254
日期:2008.9
Z, E‐Isomerization has been investigated for the series of the N‐arylthio‐1,4‐benzoquinonimines using a line shape analysis in the 1H NMR spectra. Thermodynamic parameters and substituent effects have been analyzed for the isomerization process. It has been shown based on the DFT (B3LYP) calculations that the dynamic transformation for N‐arylthio‐1,4‐benzoquinonimines should be considered as a combination
Reaction of N-chloro-1,4-benzoquinone imines with thiols
作者:S. A. Konovalova、A. P. Avdeenko、A. A. Santalova、E. N. Lysenko、K. S. Burmistrov
DOI:10.1134/s1070428016090062
日期:2016.9
N-Chloro-1,4-benzoquinone imines reacted with arenethiols to give different products, depending on the conditions and initial quinone imine structure. N-(Arylsulfanyl)-1,4-benzoquinone imines were obtained as a result of nucleophilic substitution of the chlorine atom, and 1,4-benzoquinone imines containing an aryl-sulfanyl substituent in the quinoid ring were formed according to the radical mechanism. The reactions of N-chloro-1,4-benzoquinone imines with heterocyclic thiols afforded only the corresponding chlorine substitution products.