Catalytic Access to Functionalized Allylic
<i>gem</i>
‐Difluorides via Fluorinative Meyer–Schuster‐Like Rearrangement
作者:Lihao Liao、Rui An、Huimin Li、Yang Xu、Jin‐Ji Wu、Xiaodan Zhao
DOI:10.1002/anie.202003897
日期:2020.6.26
functionalized allylic gem‐difluorides via catalytic fluorinative Meyer–Schuster‐like rearrangement is disclosed. This transformation proceeded with readily accessible propargylic fluorides, and low‐cost B–F reagents and electrophilic reagents by sulfide catalysis. A series of iodinated, brominated, and trifluoromethylthiolated allylic gem‐difluorides that were difficult to access by other methods were
公开了一种前所未有的方法,可通过催化氟化的Meyer-Schuster型重排有效合成功能化的烯丙基二氟化物。这种转变是通过容易获得的炔丙基氟化物,低成本的B-F试剂和通过硫化物催化的亲电试剂进行的。一系列具有广泛功能基团的物质容易生产出一系列碘化,溴化和三氟甲基硫醇化的烯丙基二氟化物。重要的是,获得的碘化产物可以掺入不同的药物和天然产物中,也可以方便地转化为许多其他有价值的宝石-二氟烷基分子。机理研究表明,该反应是通过炔烃的区域选择性氟化反应,然后进行正式的1,