described. This development allowed the asymmetric nickel-catalyzed 1,2-addition of arylboron reagents to aromatic aldehydes. The enantioselectivity is synthetically acceptable (up to 81% ee) using 1-naphthaldehyde and 2-substituted aromatic aldehydes as substrates. The results have enantioselectivity comparable to the best results reported by us for the rhodium-catalyzed arylation of aromatic aldehydes.
描述了在
膦配体存在下,
镍催化的三芳基环
硼氧烷与芳香醛的 1,2-加成反应。这一发展允许不对称
镍催化的芳基硼试剂与芳香醛的 1,2-加成。使用 1-
萘醛和 2-取代芳香醛作为底物,对映选择性在合成上是可接受的(高达 81% ee)。结果的对映选择性与我们报道的
铑催化芳族醛芳基化的最佳结果相当。