638353-16-9Relevant articles and documents
Reductive couplings of 2-halopyridines without external ligand: Phosphine-free nickel-catalyzed synthesis of symmetrical and unsymmetrical 2,2'-bipyridines
Liao, Lian-Yan,Kong, Xing-Rui,Duan, Xin-Fang
, p. 777 - 782 (2014/04/03)
An unexpectedly facile synthetic approach for symmetrical and unsymmetrical 2,2'-bipyridines through the Ni-catalyzed reductive couplings of 2-halopyridines was developed. The couplings were efficiently catalyzed by 5 mol % of NiCl2.6H2O without the use of external ligands. A variety of 2,2'-bipyridines including caerulomycin F have been efficiently synthesized.
Synthesis of 2,2-Bipyridines via Suzuki-Miyaura Cross-Coupling
Guetz, Christoph,Luetzen, Arne
experimental part, p. 85 - 90 (2010/04/29)
For a long time, the Suzuki-Miyaura cross-coupling reaction could not be used for the synthesis of 2,2′-bipyridines due to the lack of sufficiently stable 2-pyridylboron compounds. Stabilized 2-pyridylboronic acid esters recently developed by Hodgson, however, were found to be ideally suited for this purpose. Two general protocols could be developed and demonstrated to be valuable alternatives, which can be used very efficiently for the synthesis of functionalized 2,2-bipyridines.
Synthesis of Differently Disubstituted 2,2′-Bipyridines by a Modified Negishi Cross-Coupling Reaction
Luetzen, Arne,Hapke, Marko,Staats, Holger,Bunzen, Jens
, p. 3948 - 3957 (2007/10/03)
A general practical approach to a number of differently disubstituted 2,2′-bipyridines from substituted 2-bromo- and 2-chloropyridines by application of modified Negishi cross-coupling conditions has been developed. These 2,2′-bipyridines carry versatile functional groups that can be elaborated further, as demonstrated for some examples. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.