Ruthenium-catalyzed C-H bond functionalizations of 1,2,3-Triazol-4-yl- substituted arenes: Dehydrogenative couplings versus direct arylations

Article abstract of DOI:10.1055/s-0029-1220010

The chemoselectivity of ruthenium-catalyzed C-H bond arylations on triazol-4-yl-substituted arenes was found to depend on the substitution pattern of both substrates. While various aryl chlorides led to products stemming from direct arylations, ortho-substituted aryl halides in combination with ortho-alkylated arenes preferentially resulted in oxidative homo-couplings. Georg Thieme Verlag Stuttgart - New York.