The present invention relates to the synthesis of polycyclic aromatic compounds. Compounds such as terrylene or quaterrylene may now be prepared in relatively high yield by reaction of naphthalene or perylene via Scholl-type coupling in the presence of a superacid and an oxidant in an inert solvent.
Facile synthesis of terrylene and its isomer benzoindenoperylene
作者:Yuri Avlasevich、Christopher Kohl、Klaus Müllen
DOI:10.1039/b516264e
日期:——
3-(1-Naphthyl)perylene was synthesised by a palladium-catalysed cross-coupling reaction of 3-bromoperylene and 1-naphthaleneboronic acid. Oxidative cyclodehydrogenation of 3-(1-naphthyl)perylene selectively afforded terrylene or its isomer, benzo[4,5]indeno[1,2,3-cd]perylene. The yield of terrylene, an important fluorophore for single molecular spectroscopy, was significantly improved in comparison to literature methods. Benzoindenoperylene has an absorption maximum at 508 nm and shows no fluorescence in contrast to terrylene.