The triamine (4), obtained by reaction of hexakisbromomethylbenzene with benzylamine, has been structually elucidated by X-ray crystallography; reaction of (4) with m-chloroperbenzoic acid and subsequently with a mixture of acetic anhydride and triethylamine yields NN′N″-tribenzylbenzo[1,2-c: 3,4-c′ : 5,6-c″]tripyrrole (3), the first example of the trisazahexaradialene ring system.
J. H. Gall, C. J. Gilmore and D. D. Macnicol, J. Chem. Soc., Chem. Commun., 1979, 927 DOI: 10.1039/C39790000927
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