Chemistry of Heterocyclic Compounds p. 847 - 852 (1995)
Update date:2022-08-04
Topics:
Morkovnik, A. S.
Suslov, A. N.
Klimov, E. S.
Morkovnik, Z. S.
Okhlobystin, O. Yu.
With triphenylmethyl perchlorate (tetrafluoroborate) 1,2,2,3-tetrasubstituted benzimidazolines undergo electrophilic triphenylation at position 5.In further reaction with the electrophilic agent the obtained 5-triphenylmethylbenzimidazolines are converted into radical-cations.They undergo a similar transformation during the action of silver perchlorate and molecular oxygen.The results from investigation of the radicalcations by ESR and PMR are given.
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