Asymmetric synthesis of (3S,1′S)-3-(1-amino-2,2,2-trifluoroethyl)-1-(alkyl)-indolin-2-one derivatives by addition of (S)-N-t-butylsulfinyl-3,3,3-trifluoroacetaldimine to 1-(alkyl)-indolin-2-ones
作者:Ping Qian、Chen Xie、Lingmin Wu、Haibo Mei、Vadim A. Soloshonok、Jianlin Han、Yi Pan
DOI:10.1039/c4ob01453g
日期:——
major reaction products with synthetically meaningful diastereoselectivity and chemical yields. The reactions were shown to be of general practical application for preparation of various oxindole derivatives in a diastereomerically pure form.
本文介绍了酰胺衍生的亲核试剂与手性CF 3含N-亚磺酰基亚胺之间加成反应的第一项研究。我们证明的该烯醇化物1-(烷基) -二氢吲哚-2-酮干净地(反应小号) - Nt个丁基亚-3,3,3- trifluoroacetaldimine得到3-(1-氨基-2,2,2-三氟乙基) (3 S,1 'S)绝对构型的-1-(烷基)-吲哚-2-酮是主要的反应产物,具有合成上有意义的非对映选择性和化学收率。该反应显示出对制备非对映体纯形式的各种羟吲哚衍生物具有普遍的实际应用价值。