Sodium Carbonate → HCID 20187488, compound

Reaction equation

Br[CH:2]([CH3:15])[C:3]([C:5]1[CH:10]=[C:9]([CH3:11])[C:8]([O:12][CH3:13])=[C:7]([CH3:14])[CH:6]=1)=[O:4].[CH3:16][C:17]1[CH:29]=[CH:28][C:20]([CH2:21][CH:22]2[CH2:27][CH2:26][NH:25][CH2:24][CH2:23]2)=[CH:19][CH:18]=1.C(=O)([O-])[O-].[Na+].[Na+]>C(O)C>[CH3:16][C:17]1[CH:18]=[CH:19][C:20]([CH2:21][CH:22]2[CH2:27][CH2:26][N:25]([CH:2]([CH3:15])[C:3]([C:5]3[CH:10]=[C:9]([CH3:11])[C:8]([O:12][CH3:13])=[C:7]([CH3:14])[CH:6]=3)=[O:4])[CH2:24][CH2:23]2)=[CH:28][CH:29]=1

Participants

Procedure

5.9 g (0.022 mol) of 2-bromo-4'-methoxy-3',5'-dimethylpropiophenone are dissolved in 30 ml of ethanol, 4.2 g (0.022 mol) of 4-(4-methylbenzyl)-piperidine and then 2.12 g (0.02 mol) of sodium carbonate are added and the mixture is heated under reflux for 2 hours. It is left to cool, the inorganic precipitate is filtered off and the filtrate is evaporated. The residual oil is purified by chromatography on silica using acetone as the eluant. This gives 8 g of a product, which is used as such.