P 2890 (OTTO) 3-Pyridinylboronic acid, 97% Cas 1692-25-7 - used for preparation of phosphine-free Suzuki-Miyaura cross-coupling reactions, regioselective Suzuki-Miyaura coupling and tandem palladium-catalyzed intermolecular aminocarbonylation and annulation, N-arylation using copper acetylacetonate catalys, copper-mediated cyanation and regioselective cyanation of electron-rich benzenes, New linear poly(phenylpyridyl) chains by Suzuki coupling and Oligopyridyl foldamers as mimics of a-helix twist.