A copper-catalyzed enantioselective 1,4-conjugate hydrophosphination is achieved by
employing α,β-unsaturated esters as electrophiles and diarylphosphines as pronucleophiles.
An array of chiral phosphines was prepared in high to excellent enantioselectivity.
Moreover, a triple catalytic symmetric conjugate hydrophosphination occurred smoothly
to afford the product.
Key words
copper(I) catalysis - asymmetric catalysis - conjugate addition - hydrophosphination
- α,β-unsaturated esters