Asymmetric addition of arylboroxines to δ-aryl-α,β,γ,δ-unsaturated ketones proceeded in the presence of an iridium catalyst coordinated with a chiral diene ligand to give high yields of δ-diaryl ketones with very high enantioselectivity.
在
铱催化剂和手性二烯
配体的存在下,芳香
硼酸与γ-芳基-α,β,γ-不饱和酮的非对称加成反应,可高收率地生成对二芳基酮,且具有极高的对映选择性。