| abstract |
The invention belongs to the technical field of derivative synthesis, in particular to a benzo(b) fluoranthene derivative and a preparation method thereof. In the present invention, fluorenyl olefin, fluoride, manganese dioxide and tetrahydrofuran are mixed, a benzyne precursor is added dropwise in the obtained mixed solution, and a [4+2] cycloaddition reaction is carried out to obtain a benzo(b) fluoranthene derivative . The present invention uses fluorenyl olefins as raw materials to prepare benzo(b) fluoranthene derivatives, the raw materials are easy to obtain, and the benzo(b) fluoranthene derivatives can be synthesized in one step, and the method is simple and quick; the method of the invention does not require transition metal catalysis, and Moreover, the used oxidant (manganese dioxide) is inexpensive and environmentally friendly, and will not cause environmental pollution; the present invention conducts the reaction under reflux conditions, the reaction conditions are mild, the yield is high (up to 87%), and the universality is good. |