Abstract Various aromatic hydrocarbons, which can be assumed to represent some of the aromatic structures present in coals and chars, have been reduced under forcing conditions using lithium in ethylenediamine. It was found that:(i) Aromatic hydrocarbons highly substituted by alkyl or alicyclic groups are resistant to reduction.(ii) The less substituted benzene hydrocarbons and diphenyl-type structures yield, in addition to a proportion of ...
