remains a topic of intense interest in asymmetric catalysis. This methodology is achieved even with low acidic amides without an electron-withdrawing group at the α-position in the context of a Mannich-type reaction. Acetate-, propionate-, and butyrate-type 7-azaindoline amides served as enolate precursors to afford the desired Mannich adducts with high stereoselectivity, and ligand-enabled diastereo-divergency
直接烯醇化物的形成以及随后的对映选择性C–C键的形成仍然是不对称催化的重要话题。即使在曼尼希型反应的情况下,即使是在α位上没有吸电子基团的低酸性酰胺,也可以实现这种方法。酯- ,
丙酸- ,和丁型担任烯醇化物的前体,得到所需曼尼希加合物高立体选择性7氮杂二氢
吲哚酰胺,并启用
配体-非对映发散提供给两个接入抗/顺式非对映体。酰胺部分的轻松转化确保了曼尼希加合物的合成效用。