4-Hydroxybenzaldehyde → 4-[N-(Ethoxycarbonyl)-4-piperidinyloxy]benzaldehyde

Participants

Reaction Conditions

Reaction Steps

To a mixture of N-(ethoxycarbonyl)-piperidine-4-methanesulphonate (10 g) and 4-hydroxy benzaldehyde (5.8 g) in dry DMF (75 ml), K2CO3 (11 g) was added and the mixture was stirred at 80° C. for 12 h. At the end of this time, the reaction mixture was cooled, added water and extracted with EtOAc. The EtOAc extract was washed with 5% aqueous Na2CO3 solution followed by brine and dried over anhydrous sodium sulphate. The solvent was then removed by distillation under reduced pressure to give 7 g (63.6%) of the title compound as a semi solid.

Provenance & Evidence