My question is how to find the number of aromatic rings in triphenylene:
My professor said that there are 3 aromatic rings, after which he added that the carbons of the middle rings are only supporting ortho-fusion of rings and hence the center ring is not to be considered.
But I am not satisfied. Why not consider the center ring since the electron after all delocalizes in the entire system giving me 4 as the answer? Someone, please clear my confusion out here.