Abstract
An efficient and enantioselective phospha-Michael addition of diethyl phosphite to chalcones has been established. In the presence of a catalytic amount of chiral lanthanide silylamide generated from [(Me3Si)2N]3Yb(μ-Cl)Li(THF)3 and salen, the reaction produced the target γ-oxophosphonates with high yields and enantioselectivity.
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