Cho, Hee Yeon et al. published their research in Tetrahedron Letters in 2015 |CAS: 321-28-8

The Article related to triply fused benzene ring preparation, oxidative cyclotrimerization alkene aromatic compound, triphenylene alkoxy preparation, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Other Tricyclic and Multicyclic Six-Membered Ring Systems, Including Trypticenes and Helicenes and other aspects.Application In Synthesis of 1-Fluoro-2-methoxybenzene

On June 3, 2015, Cho, Hee Yeon; Scott, Lawrence T. published an article.Application In Synthesis of 1-Fluoro-2-methoxybenzene The title of the article was Oxidative cyclotrimerization of unsaturated compounds with DDQ and triflic acid: An efficient synthetic route to triply-fused benzene rings. And the article contained the following:

Intermol. oxidative cyclotrimerization reactions of alkenes and aromatic compounds with DDQ and trifluoromethanesulfonic acid are described. Scholl-type oxidation reactions involving alkenes have not previously been demonstrated. Moreover, the DDQ/acid system has never been used for intermol. oxidative cyclization reactions. This convenient, metal-free reagent system (DDQ/TfOH) is advantageous with respect to metal-based Scholl-type oxidants because it eliminates the possibility of halogenation of aromatic compounds as a competing side reaction. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).Application In Synthesis of 1-Fluoro-2-methoxybenzene

The Article related to triply fused benzene ring preparation, oxidative cyclotrimerization alkene aromatic compound, triphenylene alkoxy preparation, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Other Tricyclic and Multicyclic Six-Membered Ring Systems, Including Trypticenes and Helicenes and other aspects.Application In Synthesis of 1-Fluoro-2-methoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem