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Originalpublikation
Bölsing, F.; Spanuth, E.: Triphenylmethylradikale durch inverse Stevens-Umlagerung. In: Zeitschrift für Naturforschung - Section B Journal of Chemical Sciences 31 (1976), Nr. 4, S. 531-532. DOI: https://doi.org/10.1515/znb-1976-0430
Diphenyldiazomethane reacts with triphenylborane to yield benzophenonazine and benzophenone triphenylmethylhydrazone. The formation of the latter is elucidated by ESR spectroscopic detection of the triphenylmethyl radical. The reaction can be modified to a simple method for the preparation of triphenylmethyl radicals in high yields