反应详情

A solution of 1-methyl-4-phenyl-4-piperidinol (7.65 g, 40 mM) in dry DMSO (100 ml) was treated with sodium hydride (2.0 g of a 50% dispersion in oil, 42 mM). The reaction mixture was stirred for 1 hour then treated with 4-fluoronitrobenzene (5.65 g, 40 mM). After 24 hours the reaction mixture was poured on to water (500 ml) and extracted with ether (4×500 ml). The organic extracts were washed with brine, dried and the solvents removed under reduced pressure. Recrystallisation of the residue from IPA gave the title compound (6.1 g) m.p. 136°-8°.

1. extractionextracted with ether (4×500 ml)
2. washThe organic extracts were washed with brine
3. customdried
4. customthe solvents removed under reduced pressure
5. customRecrystallisation of the residue from IPA