Hydrogen fluoride-induced protiodetrimethylsilylation of trimethylsilylethynyl(phenyl)iodonium tetrafluoroborate (5), prepared from bis(trimethylsilyl)ethyne (4), affords ethynyl(phenyl)iodonium tetrafluoroborate (1), a reagent for α-ethynylation of β-dicarbonyl compounds under mild conditions.
氟化氢-诱导的三甲基
硅乙炔(苯基)的protiodetrimethylsilylation
碘鎓四
氟硼酸盐(5)中,从双制备(三甲基
硅烷基)
乙炔(4),得到
乙炔基(苯基)
碘鎓四
氟硼酸盐(1),对于β二羰基化合物的下α-
乙炔的试剂温和的条件。