Photoredox-Catalyzed Cascade Difluoroalkylation and Intramolecular Cyclization for Construction of Fluorinated γ-Butyrolactones
作者:Wanxing Sha、Wenzhong Zhang、Shengyang Ni、Haibo Mei、Jianlin Han、Yi Pan
DOI:10.1021/acs.joc.7b01279
日期:2017.9.15
difluoroalkylation and intramolecular cyclization reaction has been developed for the synthesis of difluoroalkylated oxygen heterocycles. The reaction was carried out under very mild conditions, affording fluorinated isobenzofuran-1-ones, lactone, and cyclic ethers with up to 97% chemical yields. Furthermore, several types of bromofluoroalkane precursors bearing ester, keto, amido, and phosphate groups could all work
已经开发了级联可见光光催化二氟烷基化和分子内环化反应用于合成二氟烷基化的氧杂环。反应在非常温和的条件下进行,以高达97%的化学收率得到氟化的异苯并呋喃-1-酮,内酯和环醚。此外,带有酯基,酮基,酰胺基和磷酸基的几种类型的溴氟烷烃前体在该反应中都可以很好地起作用,这为制备官能化的二氟烷基化氧杂环化合物提供了一种简便的方法。