TBAF tetrahydrofuran → HCID 18548957, compound

Participants

Reaction Steps

To 800 mg of 4-(3-bromo-phenylamino)-6-trimethylsilanylethynyl-[1,7]naphthyridine-3-carbonitrile in 20 mL of tetrahydrofuran at 0° C. under an inert atmosphere was added 2.5 mL of 1 M tetrabutylammonium fluoride/tetrahydrofuran. After 1 hour at ambient temperature, the reaction was diluted with ethyl acetate and washed with brine. The organic layer was dried with sodium sulfate and evaporated. The product was purified by flash chromatography on silica gel to give 300 mg of 4-(3-bromo-phenylamino)-6-ethynyl-[1,7]naphthyridine-3-carbonitrile: melting point 224° C. (decomposed); mass spectrum (m/e): M+H 349.1, 351.1.

Provenance & Evidence