Synthesis of Benzo[ k ]fluoranthene Derivatives through Diels–Alder Reaction of 1,3‐Diarylbenzo[ c ]furans

Diels–Alder reaction of symmetrical/unsymmetrical benzo[ c ]furans with acenaphthylene in xylenes at reflux temperatures followed by p ‐toluenesulfonic acid‐mediated epoxide cleavage and dehydration furnished diaryl/heteroaryl‐substituted benzo[ k ]fluoranthenes. This strategy could be successfully applied to the synthesis of dimeric and trimeric benzo[ k ]fluoranthenes. Functionalization of representative benzo[ k ]fluoranthene derivatives was also performed. UV/Visible, emission and electrochemical properties of representative fluoranthene derivatives are also reported.