acenaphthene

It is produced industrially by dehydrogenation of acenaphthene.

Acenaphthene was prepared the first time from coal tar by Marcellin Berthelot.

Hydrogenation gives the more saturated compound acenaphthene.

Acenaphthoquinone is a quinone derived from acenaphthene.

The compound was first synthesised by Erich Clar in 1955 from acenaphthene in one method and from chrysene in another.

Production and Producers: Dibenzofuran is recovered from a wash oil fraction of coal tar that boils between 275 C and 290 C. Redistillation separates dibenzofuran from acenaphthene, which boils at a lower temperature.

Besides millions of gallons of road tar, products included phenol, the cresols and xylenols, naphthalene, pyridine bases, creosote, benzene, toluene, xylene, solvent naphtha, ammonium sulphate and ammonia solution, sulphuric acid, picolines, quinoline, quinaldine, acenaphthene, anthracene and dicyclopentadiene.