3-Aryl-2 H-azirines as annulation reagents in the Ni(II)-catalyzed synthesis of 1 H-benzo[4,5]thieno[3,2- b]pyrroles
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A high-yielding method for the synthesis of 3-arylbenzo[4,5]thieno[3,2-b]pyrroles has been developed via pyrrole ring annulation to the aromatic benzo[b]thiophene system, using 3-arylazirines as a N‒C=C synthon. The reaction is catalyzed by Ni(hfacac)2 and pr... ...
