title: Tetra- and Pentacationic Electrophiles and Their Chemistry.
abstract: A tetracationic electrophile has been generated in superacid and shown to undergo an arylation reaction with benzene. A cyclization product is also obtained in the absence of benzene, presumably from a tricationic intermediate. Using low-temperature NMR, the tetracationic species is directly observed from a FSO3H-SbF5-SO2ClF solution. Similar chemistry is described with a system involving penta- and tetracationic intermediates. These highly ionized structures and their chemistry were also examined by DFT calculation.
authors: Department of Chemistry and Biochemistry, Northern Illinois University , DeKalb, Illinois 60115, United States.
authors: Makafui
authors: M
authors: Gasonoo
authors: Department of Chemistry and Biochemistry, Northern Illinois University , DeKalb, Illinois 60115, United States.
authors: Rajasekhar Reddy
authors: RR
authors: Naredla
authors: Pharmaceutical Technology and Development, AstraZeneca R&D Gothenburg, Mölndal S-431 83, Sweden.
authors: Sten O
authors: SO
authors: Nilsson Lill
authors: Department of Chemistry and Biochemistry, Northern Illinois University , DeKalb, Illinois 60115, United States.
authors: Douglas A
authors: DA
authors: Klumpp