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In the aza-Morita-Baylis-Hillman reaction of  N -sulfonated imines with methyl vinyl ketone (MVK) promoted by chiral phosphine Lewis base: ( R )-2'-diphenylphosphanyl-[1,1']binaphthalenyl-2-ol ( LB1 ) (10 mol %), the aza-Morita-Baylis-Hillman adducts were obtained in good yields with high ee (70-94 % ee) at -30 °C in THF. The scope and limitations of this reaction have been disclosed.

Chiral phosphine Lewis bases in catalytic, asymmetric aza-Morita-Baylis-Hillman reaction