作者:Takashima, Mirei、Miyoshi, Makoto、Sako, Makoto、Arisawa, Mitsuhiro、Murai, Kenichi
DOI:10.1002/adsc.202400484
日期:——
We have developed a method for ring contraction of N–H piperidines using oxidative rearrangement with PhI(OAc)2. The reaction forms iminium ion intermediates that are effectively trapped by nucleophiles (e.g., NaBH4, H2O) yielding the corresponding pyrrolidine derivatives. Additionally, we propose an ionic mechanism supported by experiments and density‐functional theory calculations.
我们开发了一种利用 PhI(OAc)2 氧化重排来收缩 N-H 哌啶环的方法。该反应形成亚胺离子中间体,该中间体被亲核试剂(例如NaBH4、H2O)有效捕获,产生相应的吡咯烷衍生物。此外,我们提出了一种由实验和密度泛函理论计算支持的离子机制。