Product Details of 3939-12-6. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 6-Fluoronicotinonitrile, is researched, Molecular C6H3FN2, CAS is 3939-12-6, about Anhydrous Tetramethylammonium Fluoride for Room-Temperature SNAr Fluorination.
This paper describes the room-temperature SNAr fluorination of aryl halides and nitroarenes using anhydrous tetramethylammonium fluoride (NMe4F). This reagent effectively converts aryl-X (X = Cl, Br, I, NO2, OTf) to aryl-F under mild conditions (often room temperature). Substrates for this reaction include electron-deficient heteroaromatics (22 examples) and arenes (5 examples). The relative rates of the reactions vary with X as well as with the structure of the substrate. However, in general, substrates bearing X = NO2 or Br react fastest. In all cases examined, the yields of these reactions are comparable to or better than those obtained with CsF at elevated temperatures (i.e., more traditional halex fluorination conditions). The reactions also afford comparable yields on scales ranging from 100 mg to 10 g. A cost anal. is presented, which shows that fluorination with NMe4F is generally more cost-effective than fluorination with CsF.
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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem