作者:Le Li、Madhu Ganesh、Daniel Seidel
DOI:10.1021/ja9034494
日期:2009.8.26
Highly enantio- and diastereoselective organocatalytic Mannich additions of alpha-isothiocyanato imides to sulfonyl imines are reported. Enantiomerically enriched syn-alpha,beta-diamino acid derivatives can be obtained in excellent yields using catalyst loadings as low as 0.25 mol %.
报道了α-异硫氰酸亚胺与磺酰基亚胺的高度对映选择性和非对映选择性有机催化曼尼希加成。使用低至 0.25 mol% 的催化剂负载量,可以以极好的收率获得对映异构体富集的 Syn-α,β-二氨基酸衍生物。