Cross-coupling of nonstabilized aziridinylmagnesiums with alkylhalides catalyzed by Cu(I) iodide: a new synthesis of amines bearing a quaternary chiral center and an asymmetric synthesis of both enantiomers of the amines from one chiral starting material
作者:Tsuyoshi Satoh、Rie Matsue、Toshinari Fujii、Satoshi Morikawa
DOI:10.1016/s0040-4020(01)00278-2
日期:2001.4
with Pd(OH)2 in alcohol to give the amines bearing a quaternary chiral center in quantitative yields. Synthesis of both enantiomers of the amines bearing a quaternary chiral center was realized starting from optically active (R)-chloromethyl p-tolyl sulfoxide in good overall yields with perfect asymmetric induction.
由亚乙基溴化镁处理由1-氯烷基对甲苯基亚砜和亚胺合成的亚磺酰基氮丙啶,通过亚砜-镁交换反应得到不稳定的氮丙啶基镁。通过使用碘化铜(I)作为催化剂,可以高产率实现叠氮基烷基镁与各种烷基卤的交叉偶联,并且发现该反应是立体特异性的。偶联产物在醇中用Pd(OH)2氢化,以定量收率得到带有季手性中心的胺。从光学活性(R)-氯甲基p开始合成带有季手性中心的胺的对映体的合成。-甲苯基亚砜,具有良好的总收率,具有完美的不对称诱导。