Electrochemical partial fluorination of organic compounds. 74. Efficient anodic synthesis of 2-fluoro- and 2,3-difluoro-2,3-dihydrobenzofuran derivatives

被引:22
作者
Dawood, KM
Fuchigami, T [1 ]
机构
[1] Cairo Univ, Fac Sci, Dept Chem, Giza 12613, Egypt
[2] Tokyo Inst Technol, Dept Elect Chem, Midori Ku, Yokohama, Kanagawa 227, Japan
关键词
D O I
10.1021/jo035871g
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Anodic fluorination of 3-substituted benzofuran derivatives in a variety of fluoride salts resulted in the formation of three fluorinated products; two stereoisomers of 2,3-difluoro-2,3-dihydrobenzofuran (cis and trans) and cis-2-fluoro-3-hydroxy-2,3-dihydrobenzofuran derivatives. Dehydrofluorination of the main products, cis-difluoro derivatives, furnished the nonaromatic 2-fluoro-3-benzofuranyledene derivatives instead of the aromatic 2-fluorobenzofuran derivatives.
引用
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页码:5302 / 5306
页数:5
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