Electrolytic Partial Fluorination of Organic Compounds. 22.<sup>1</sup> Highly Regioselective Anodic Monofluorination of Oxindole and 3-Oxo-1,2,3,4-tetrahydroisoquinoline Derivatives: Effects of Supporting Fluoride Salts and Anode Materials
作者:Yankun Hou、Seiichiro Higashiya、Toshio Fuchigami
DOI:10.1021/jo971173i
日期:1997.12.1
Highly regioselective monofluorination of 1-aryl-3-(phenylthio)oxindoles and 2-substituted-3-oxo-4-(phenylthio)-1,2,3,4-tetrahydroisoquinolines can be successfully carried out in the presence of Me4NF . 4HF or Et4NF . 3HF as a supporting electrolyte to provide the corresponding S-fluorinated oxindole and 4-fluorinated isoquinoline derivatives in good yields. Carbon anodes as well as a platinum anode were found to be effective for the fluorination when Me4NF . 4HF was used as the supporting electrolyte.