Fe(OTf)₃-catalysed Friedel-Crafts reaction of benzenoid arenes with α,β-unsaturated carbonyl compounds: easy access to 1,1-diarylalkanes.

Especially, the synthesis of 1,1-diarylalkane is highly significant as the core structure of 1,1-diarylalkane is found in many important molecules having biological activities ( figure 1 ).

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