Unusual chemoselective addition of diisopropylzinc to 2,2′-bipyridine-5,5′-dicarbonyl compounds in the 2-position and autoxidative reconversion with carbon–carbon bond cleavage
Unusual chemoselective addition of diisopropylzinc to the 2-position of 2,2â²-bipyridine-5,5â²-dicarbonyl compounds affords the adducts with a quaternary carbon, and autoxidation of the adducts reconverts them into the initial compounds with carbonâcarbon bond cleavage.