Abstract Reactions of ethylaluminium dichloride, diethylaluminium chloride and triethylaluminium with p-chloranil have been investigated. Tetrachlorohydroquinone and p- ethoxytetrachlorophenol are the main reaction products after hydrolysis. Ethane, ethylene, butane, hexane, octane, higher aliphatic hydrocarbons, products of the chlorine substitution by an ethyl group in a molecule of p-chloranil or tetrachlorohydroquinone, and ...