Catalyst-free synthesis of isoxazolidine from nitrosoarene and haloalkyne <i>via</i> a 1,2-halo-migration/[3 + 2] cycloaddition cascade
作者:Shaotong Qiu、Tongxiang Cao、Shifa Zhu
DOI:10.1039/d1ob00421b
日期:——
An unprecedented catalyst-free three-component reaction to synthesize isoxazolidine from easily accessible haloalkyne, nitrosoarene and maleimide was developed. This reaction was proposed to proceed via a 1,2-halo migration and [3 + 2] cycloaddition cascade, providing a new reaction pattern of alkyne and nitroso containing species wherein a new type of nitrone was generated. Besides, the reaction conditions
开发了一种前所未有的无催化剂三组分反应,可从易于获得的卤代炔烃、亚硝基芳烃和马来酰亚胺合成异恶唑烷。该反应被提议通过1,2-卤素迁移和 [3 + 2] 环加成级联进行,提供了一种新的炔烃和含亚硝基物质的反应模式,其中产生了一种新型的硝酮。此外,反应条件高效且环境友好,能够形成各种与生物活性相关的异恶唑烷。