catalytic enantioselectiveFriedel-Craftsalkylation of indoles with aromatic α,β-unsaturatedaldehydes has been developed. The process is promoted by (S)-diphenylprolinol trimethyl silyl ether to afford, after sodium borohydride mediated reduction, 3-indolyl-3-phenylpropanols in high enantioselectivities and good yields. organocatalysis - enantioselectivity - Friedel-Craftsalkylation - indoles - aromatic
A highly enantioselective Friedel-Crafts alkylation of indoles with α,β-unsaturated aldehydes with excellent enantioselectivities (up to >99 % ee) has been developed, and this improved method offers substantial advantages over traditional approaches, not only by avoiding the use of acids or bases, but also in terms of the higher level of stereoselectivity. In addition, we have demonstrated through