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. 2013 Oct 23;135(42):15730-3.
doi: 10.1021/ja4087819. Epub 2013 Oct 15.

Dynamic kinetic cross-coupling strategy for the asymmetric synthesis of axially chiral heterobiaryls

Abel Ros  1 , Beatriz Estepa, Pedro Ramírez-López, Eleuterio Álvarez, Rosario Fernández, José M Lassaletta
Affiliations

Dynamic kinetic cross-coupling strategy for the asymmetric synthesis of axially chiral heterobiaryls

Abel Ros et al. J Am Chem Soc. .

Abstract

A dynamic kinetic asymmetric transformation (DYKAT) technique has been designed for the synthesis of 2'-substituted 2-aryl pyridines/isoquinolines and related heterobiaryls. In this way, the Pd(0)-catalyzed coupling of racemic 2-triflates with aryl boroxines using a TADDOL-derived phosphoramidite as the ligand provides the corresponding coupling products with good to excellent enantioselectivities. Structural studies support that the formation of configurationally labile oxidative addition palladacycles is the key for the success of the methodology.

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