One-pot asymmetric synthesis of α-trifluoromethylated amines from α-trifluoromethyl ketones
作者:Jian Xu、Zhen-Jiang Liu、Xian-Jin Yang、Li-Min Wang、Guan-Long Chen、Jin-Tao Liu
DOI:10.1016/j.tet.2010.09.047
日期:2010.11
of (Rs)-N-tert-butanesulfinyl α-trifluoromethyl ketimines formed in situ from the corresponding α-trifluoromethyl ketones and N-tert-butanesulfinamide has been achieved, and either diastereomer of N-tert-butanesulfinyl α-trifluoromethyl amines was obtained in good yields with excellent diastereoselectivities (up to 99:1 dr) using NaBH4 and L-Selectride as the reductants, respectively.
(非对映选择性还原卢比- )ñ -叔-butanesulfinylα三氟甲基酮亚胺形成原位由相应的α-三氟甲基酮和ñ -叔-butanesulfinamide已经实现,并且或者非对映体ñ -叔-butanesulfinylα三氟甲基胺WAS分别使用NaBH 4和L-Selectride作为还原剂,可以得到具有良好非对映选择性(高达99:1 dr)的非对映选择性的高收率化合物。