作者:Zugui Shi、Peiyuan Yu、Pei Juan Chua、Guofu Zhong
DOI:10.1002/adsc.200900580
日期:2009.11
In the presence of the readily available quinine-derived catalyst 4d, highly diastereo- and enantioselective Mannich reactions of tosyl-protected imines and α-isothiocyanato imides proceeded to afford the protected α,β-diamino acids, useful building blocks for natural products and biologically active compounds, in good to excellent yields.
在容易获得的奎宁衍生的催化剂4d的存在下,甲苯磺酰基保护的亚胺和α-异硫氰酸根酰亚胺的高度非对映和对映选择性曼尼希反应可提供受保护的α,β-二氨基酸,天然产物和生物学上有用的结构单元活性化合物,收率好至极好。