Bifluorene-containing helicene-like compound and synthesis method thereof

The invention belongs to the technical field of carbocyclic compounds, and discloses a difluorene-containing helicene-like compound and a synthesis method thereof. Diaryl acid substituted naphthalene is used as a raw material, and an intramolecular Friedel-Crafts acylation ring formation reaction is adopted to successfully prepare a class of helicene-like compounds with spiral chirality and photoelectric functional properties. The method has the advantages of being short in synthesis route, high in yield, easy to operate and the like, and is different from a traditional helicene synthesis ring formation method, and the novel Friedel-Crafts acylation ring formation strategy is low in preparation cost and easy to popularize. Based on a new cyclization strategy, different aryl functional groups such as a benzene ring, a naphthalene ring and a phenanthrene ring can be changed to correspondingly obtain the [6]-[10] helicene-like compound. Based on the luminescence property of fluorene and the inherent spiral chira