反应详情

温度

150 °C

Tungsten metal (1.0 g, 99% purity) filings were suspended in water (20 mL) and hydrogen bis-triflimide (HNTf2) (5 g) was added. This mixture was heated under reflux for 144 hours. The resultant slurry was cooled, filtered and concentrated on a rotary evaporator to give a colourless solution that crystalised on standing. The crystals were heated at 150° C. at 1 mmHg to remove the residual water and hydrogen bis-triflimide. The precise structure of the catalyst is not known, but it was found to be the best of all isolated metal bis-triflimide catalysts tested in the reaction of benzoyl chloride with toluene.

1. temperatureThis mixture was heated
2. temperatureunder reflux for 144 hours
3. temperatureThe resultant slurry was cooled
4. filtrationfiltered
5. concentrationconcentrated on a rotary evaporator
6. customto give a colourless solution that
7. customcrystalised
8. customto remove the residual water and hydrogen bis-triflimide
9. customtested in the reaction of benzoyl chloride with toluene