“…The 1,3,5-triaminobenzene derivatives—first studied by the pioneer work of Effenberger [ 1 ]—belong to neutral electron-rich aromatic substrates and are able to react at the neutral carbon atom [ 1 , 2 ]. (These kinds of nucleophiles have been reported to react with a plethora of electrophiles, such as proton [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ], halogens [ 11 , 12 ], acyl- [ 13 , 14 , 15 ], alkyl- [ 16 ], and aryl-halides [ 17 ]. The coupling between 1,3,5-triaminobenzene of types A and B and aryl diazonium salts gave stable Wheland intermediates ( W ) by the azo-coupling reaction [ 18 ] ( Scheme 1 ), conversely to what is usually reported in the textbooks.…”