9-1 Naming Aromatic Compounds Aromatic substances have acquired nonsystematic names Nonsystematic names :EC Common Names of Some Aromatic Compounds are discouraged but Structure Name Structure Name allowed by IUPAC CH3 Toluene CHO Benzaldehyde (bp 111C) (bp 178C) Common name for methylbenzene is OH Phenol CO>H Benzoic acid toluene (mp 43C) (mp122C) Common name for NH2 Aniline ortho-Xylene hydroxybenzene is (bp184G) (bp 144C) phenol CH3 Acetophenone Styrene Common name for (mp 21C) (bp145C) CH3 aminobenzene is anilineAromatic substances have acquired nonsystematic names ▪ Nonsystematic names are discouraged but allowed by IUPAC ▪ Common name for methylbenzene is toluene ▪ Common name for hydroxybenzene is phenol ▪ Common name for aminobenzene is aniline 9-1 Naming Aromatic Compounds