One-pot synthesis of functionalized p-terphenyl derivatives

A one-pot synthetic route for preparing functionalized p-terphenyl derivatives 1 and 4 is developed. The route is easily carried from the treatment of cinnamyl aldehydes 2 with substituted allylsulfones 3 in good yields via the tandem intermolecular aldol condensation/intramolecular electrocyclization/oxidative dehydrogenation.

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