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A series of novel bifunctional chiral phosphine-containing Lewis bases were synthesized and successfully applied to the asymmetric Morita–Baylis–Hillman reaction of aldehydes with methyl vinyl ketone (MVK) and ethyl vinyl ketone (EVK) to give the corresponding adducts in moderate yields and enantioselectivities under mild reaction conditions.
Axially chiral imine ligands derived from (R)-BINAM are effective chiral ligands in the Zn(OTf) 2 -promoted enantioselective Friedel–Crafts alkylation of indoles with nitroalkenes under mild conditions to give the corresponding adducts in good yields and moderate enantioselectivities.
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