Abstract

Intramolecular CH arylation of imidazole derivatives is carried out in the presence of a palladium catalyst to form fused heteroaromatic compounds. The reaction of imidazole with 2-iodobenzyl bromide with NaH gives the cyclization precursor in an excellent yield. This then undergoes a palladium-catalyzed intramolecular CH arylation at 100 °C to form 5H-imidazo[5,1-a]isoindole in 78% yield.

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