Catalytic asymmetric dienylation of achiral aldehydes using buta-2,3-dienylstannane in the presence of chiral Lewis acid and synergetic reagent
Abstract
Efficient catalytic asymmetric dienylation of achiral aldehydes with buta-2,3-dienyltributylstannane promoted by a BINOL-TiIV complex is achieved with high enantioselectivity by the utilization of Et2BSPri.