Copper-catalyzed enantioselective 1,2-borylation of 1,3-dienes
作者:Yangbin Liu、Daniele Fiorito、Clément Mazet
DOI:10.1039/c8sc01538d
日期:——
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