An enantioselective Friedel–Craftsalkylation of indoles with β,β-disubstituted nitroalkenes was developed by using a nickel(II) perchlorate–bisoxazoline complex as a catalyst. A range of nitroalkenes and indoles participated in this reaction, affording chiral indole compounds bearing all-carbon quaternary stereocenters in excellent yields and with moderate to good enantioselectivities (up to 80% ee)
Method for producing an optically active nitro compound
申请人:Carreira M. Erick
公开号:US20070037976A1
公开(公告)日:2007-02-15
An optically active nitro compound having two hydrogen atoms on its α-cabon atom and having β-asymmetric carbon atom can be produced by making α, β-unsaturated nitroolefin having a hydrogen atom on its α-cabon atom react with at least two organosilicon compounds having at lest one silicon-hydrogen bond in the molecule in the presence of an asymmetric copper complex, or react with an organosilicon compound having at least one silicon-hydrogen bond in the molecule in the presence of an asymmetric copper complex and water.