Rh2(OAc)4 and Chiral Phosphoric Acid Cocatalyzed Highly Diastereo- and Enantioselective Four-Component Reactions: Facile Synthesis of Chiral α,β-Diamino Acid Derivatives
作者:Wenhao Hu、Changcheng Jing、Dong Xing、Yu Qian
DOI:10.1055/s-0033-1341051
日期:——
another molecule of aniline and ethyl glyoxylate. With this method, a series of chiral α,β-diamino acid derivatives were efficiently constructed in good yields and with good to excellent diastereo- and enantioselectivities. A highly diastereo- and enantioselective four-component reaction of a diazo ketone with two molecules of anilines and ethyl glyoxylate was achieved under Rh2(OAc)4 and chiral phosphoric
摘要 在Rh 2(OAc)4和手性磷酸共催化条件下,重氮酮与两个分子的苯胺和乙醛酸乙酯的非对映选择性和对映选择性四组分反应非常高。这种转化通过曼尼希式捕获由金属卡宾和一个分子苯胺生成的内鎓盐与衍生自另一分子苯胺和乙醛酸乙酯的亚氨基酯进行。用这种方法,可以有效地以高收率和良好至极好的非对映和对映选择性构造一系列手性α,β-二氨基酸衍生物。 在Rh 2(OAc)4和手性磷酸共催化条件下,重氮酮与两个分子的苯胺和乙醛酸乙酯的非对映选择性和对映选择性四组分反应非常高。这种转化通过曼尼希式捕获由金属卡宾和一个分子苯胺生成的内鎓盐与衍生自另一分子苯胺和乙醛酸乙酯的亚氨基酯进行。用这种方法,可以有效地以高收率和良好至极好的非对映和对映选择性构造一系列手性α,β-二氨基酸衍生物。