Copper-catalyzed enantioselective 1,2-borylation of 1,3-dienes.

ABSTRACT: A highly enantioselective Cu-catalyzed borylation of 2-substituted 1,3-dienes is reported. The use of a chiral phosphanamine ligand is essential in achieving high chemo-, regio-, diastereo- and enantioselectivity. It provides access to a variety of homoallylic boronates in consistently high yield and enantiomeric excess with 2-aryl and 2-heteroaryl 1,3-dienes as well as sterically demanding 2-alkyl 1,3-dienes. Preliminary investigations based on a non-linear effect study point to a mechanism involving more than one metal center.

SUBMITTER: Liu Y 

PROVIDER: S-EPMC6001400 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature