Deprotonation of Benzoxazolium Salt: Trapping of a Radical-Cation Intermediate.
Svetlana V KlementyevaPavel A AbramovNikolay V SomovYulia B DudkinaYulia H BudnikovaAndrey I Poddel'skyPublished in: Organic letters (2019)
The deprotonation of N-2,6-diisopropylphenyl-substituted benzoxazolium tetrafluoroborate 1 with NaH results in the formation of electron-rich diaminodioxaethylene 2. The radical cation salt 2·+·BF4- is found to be an intermediate product in the redox reaction leading from 1 to 2.