palladium(II) precursor for the generation of dicationic palladium(II) catalysts. Parallel ligand screening is enabled for the first time, and twenty-four chiral ligands were evaluated for the asymmetric aza-Michael addition of aromatic amines to α,β-unsaturated N-alkenoylimides and carbamates. Enantioselectivities of >99% can be obtained. Catalytic precursors generated from 1 using the new protocol have
                                    双(
三氟甲磺酸酯)
钯(II)
二水合物复合物,加入Pd(OTF)2 ⋅2ħ 2 O(1),是一种活性的
钯(II)的前体为双阳离子
钯(II)催化剂的生成。首次启用了平行
配体筛选,并评估了24种手性
配体对α,β-不饱和N-烯基
酰亚胺和
氨基甲酸酯的芳香胺的不对称氮杂-迈克尔加成反应。可获得> 99%的对映选择性。已经确定了使用新方案从1生成的催化前体。