A recent answer of mine involved the synthesis of the following compound:
I initially assumed the name of this compound to be (Z)-1,1-diphenylbut-2-ene as the butene is the main chain, with two phenyl groups attached to it. However, the preferred IUPAC name seems to be (Z)-but-2-ene-1,1-diyldibenzene, as verified by ChemDraw. Why is this so? I have not encountered the naming of biphenyls in this manner. What rules apply here to give this compound this name?