Direct access: Sterically hindered vicinal quaternary carbon stereocenters were constructed by catalytic enantio‐ and diastereoselective double Michael reaction, providing straightforward access to dimeric hexahydropyrroloindole alkaloids. A Mn(4‐fluorobenzoate)2/Schiff base complex and a Mg(OAc)2/benzoic acid system were used as catalysts.
直接进入:通过催化对映异构和非对映选择性的双迈克尔反应,建立了位阻邻季碳立体中心,提供了直接接触二聚六氢
吡咯并
吲哚生物碱的途径。Mn(4-
氟苯甲酸酯)2 /席夫碱配合物和Mg(OAc)2 /
苯甲酸体系用作催化剂。