Premium
Indium‐Catalyzed C−F Bond Transformation through Oxymetalation/β‐Fluorine Elimination to Access Fluorinated Isocoumarins
Author(s) -
Yata Tetsuji,
Nishimoto Yoshihiro,
Chiba Kouji,
Yasuda Makoto
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202100672
Subject(s) - isocoumarins , catalysis , chemistry , reagent , isocoumarin , fluorine , halogenation , combinatorial chemistry , salt (chemistry) , halide , organic chemistry , indium , alkyl
Fluorinated heterocycles have attracted much attention in the pharmaceutical and agrochemical industries. Many strategies have already been developed to achieve the synthesis of fluorinated heterocycles. Formidable challenges remain, however, in the synthesis of fluorinated isocoumarin derivatives that are among the most alluring structural motifs. Herein, the indium‐catalyzed C−F bond transformation of 2‐(2,2‐difluorovinyl) benzoates is reported, which are readily accessible compounds, to give a diverse array of fluorinated isocoumarins. The present reaction proceeds smoothly using inexpensive reagents: a catalytic amount of indium salt in the presence of zinc salt. A theoretical calculation of potential energy profiles showed that the reaction consists of oxymetalation with the elimination of alkyl halide and the β‐fluorine elimination.