Abstract
2:1 adducts arise from the reaction of 2,5-diaryl-1,3,4-oxadiazoles and benzynes generated from the hexadehydro-Diels-Alder (HDDA) reaction. Density functional theory computations support a mechanistic manifold that includes a concerted SNAr process. Additionally, the benzyne trapping reaction of 2,5-dimethyl-1,3,4-oxadiazole affords an unusual acylimine-containing 2:1 adduct, which is the first case in which a dearomatized product has arisen from a HDDA reaction.
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