aromatic diolefinic compounds including 1 , 4 - divinylbenzene derivatives , which are useful not only as organic photoconductive materials for electrophotography , but also as intermediates for producing diethyl aromatic compounds which are also useful as organic photoconductive materials for electrophotography , the aromatic diethyl compounds , an electrophotographic photoconductor containing any of the above aromatic diethyl compounds in a photosensitive layer thereof , and a charge transporting medium containing any of the aromatic diethyl compound are disclosed .