异香豆素类
催化作用
化学
试剂
异香豆素
氟
卤化
组合化学
盐(化学)
卤化物
有机化学
铟
烷基
作者
Tetsuji Yata,Yoshihiro Nishimoto,Kouji Chiba,Makoto Yasuda
标识
DOI:10.1002/chem.202100672
摘要
Abstract 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.
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