We have developed a highly selective kinetic resolution of N-sulfonyl oxaziridines. This reaction utilizes an inexpensive and easily synthesized iron bis(oxazoline) catalyst to promote the efficient rearrangement of oxaziridines to the corresponding N-sulfonyl imides; no sacrificial reagents are required to effect this resolution. This process is readily translated to gram scale, which provides a practical method for the preparation of structurally diverse, enantiopure N-sulfonyl oxaziridines for use as reagents in organic synthesis.
我们开发了一种对N-磺酰基噁二唑的高选择性动力学拆分方法。该反应利用一种廉价且易于合成的
铁双(
恶唑啉)
催化剂,促进噁二唑高效重排为其对应的N-磺酰基
亚胺;无需牺牲试剂即可实现这种拆分。这一过程可轻松扩展至克级规模,从而为制备结构多样、手性纯的N-磺酰基噁二唑提供了一种实用方法,这些化合物可作为有机合成中的试剂使用。