of 2-aryl-N-tosylazetidines in polar and coordinating solvents followed by an unprecedented rearrangement to substituted achiral and chiral (E)-allylamines (ee >99%) is reported. The methodology has been applied for the synthesis of gamma-unsaturated-beta-amino acids. A plausible mechanism for the rearrangement is also described.
Cu(OTf)2介导的在极性和配位溶剂中2-芳基-N-
甲苯磺酰氮杂
环丁烷的开环高效开环策略,然后空前重排成取代的非手性和手性(E)-
烯丙胺(ee> 99%),这是一种高效的策略报告。该方法已用于合成γ-不饱和β-
氨基酸。还描述了用于重新布置的合理机制。