反应详情

A mixture of 2-(N-(5-bromo-2-(phenethyl)benzyl)amino)-2-methylpropan-1-ol (9.13 g), N-chlorosuccinimide (3.38 g) and dichloromethane (50 ml) was stirred for 4 hours. Aluminia (10 g) was added and the mixture stirred for 6 days, filtered and the solvent evaporated. The residue was dissolved in dichloromethane (200 ml) and alumina (60 g) added in 6 portions over 8 hours. The mixture was filtered, the filtrate evaporated and the residue purified by MPLC eluting with dichloromethane/hexane (1:1) to give 5-bromo-2-(phenethyl)benzaldehyde (3.54 g).

1. additionAluminia (10 g) was added
2. stirringthe mixture stirred for 6 days
3. filtrationfiltered
4. customthe solvent evaporated
5. dissolutionThe residue was dissolved in dichloromethane (200 ml)
6. additionalumina (60 g) added in 6 portions over 8 hours
7. filtrationThe mixture was filtered
8. customthe filtrate evaporated
9. customthe residue purified by MPLC
10. washeluting with dichloromethane/hexane (1:1)