Asymmetric Organocatalytic Aza-Friedel-Crafts Reaction of Naphthols with N-Sulfonyl Imines
作者:Pankaj Chauhan、Swapandeep Singh Chimni
DOI:10.1002/ejoc.201001653
日期:2011.3
The first organocatalyticasymmetric aza-Friedel–Crafts reaction of naphthols with N-sulfonyl imines has been developed. The cupreine-derived bifunctional organocatalyst BzCPN efficiently catalyzes the formation of aza-Friedel–Crafts products in good to excellent yields (up to 99 %) with high enantioselectivities (up to 99.5:0.5 er) under mild reaction conditions, with a low catalyst loading (2–5 mol-%)