反应详情

温度

0 °C

DIAD (1 eq) was added dropwise to a well-stirred solution of triphenylphosphine (1 eq) in THF (0.4 M) at 0° C. under nitrogen. The mixture was then maintained at 0° C. with stirring for 30 min. The white solid obtained was collected by filtration (use medium sized fritted filters), washed with cold anhydrous THF until the washes were colorless, and lastly washed once with anhydrous Et2O. The white solid product was then vacuum-dried (oil pump) and stored under nitrogen. (Note: The PPh3-DIAD adduct can be made in larger than immediately required quantity and stored under nitrogen; it is very important to store this reagent under anhydrous conditions.)

1. customThe white solid obtained
2. filtrationwas collected by filtration (use medium sized fritted filters)
3. washwashed with cold anhydrous THF until the washes
4. washlastly washed once with anhydrous Et2O
5. customThe white solid product was then vacuum-dried (oil pump)