Potassium Carbonate → Methyl 4-(3-(4-acetyl-3-hydroxy-2-propylphenoxy)propylthio)-gamma-oxo-beta-methyl-2-bromobenzenebutanoate
Reaction equation
[Br:1][C:2]1[CH:7]=[C:6]([SH:8])[CH:5]=[CH:4][C:3]=1[C:9](=[O:17])[CH:10]([CH3:16])[CH2:11][C:12]([O:14][CH3:15])=[O:13].[C:18]([C:21]1[CH:31]=[CH:30][C:24]([O:25][CH2:26][CH2:27][CH2:28]Br)=[C:23]([CH2:32][CH2:33][CH3:34])[C:22]=1[OH:35])(=[O:20])[CH3:19].C(=O)([O-])[O-].[K+].[K+]>C(C(C)=O)C.C(OCC)(=O)C>[C:18]([C:21]1[CH:31]=[CH:30][C:24]([O:25][CH2:26][CH2:27][CH2:28][S:8][C:6]2[CH:5]=[CH:4][C:3]([C:9](=[O:17])[CH:10]([CH3:16])[CH2:11][C:12]([O:14][CH3:15])=[O:13])=[C:2]([Br:1])[CH:7]=2)=[C:23]([CH2:32][CH2:33][CH3:34])[C:22]=1[OH:35])(=[O:20])[CH3:19]Participants
6
Reactant 3
Product 1
Reagents, catalysts & solvents 2
Procedure
To a solution of the thiol from step C (2.9 g) and 3-(4-acetyl-3-hydroxy-2-propylphenoxy)propylbromide (3.74 g) in methyl ethyl ketone (25 c.c.) was added potassium carbonate (3.78 g, milled) and the suspension was refluxed for 21/2 hours, then stirred at R.T. for 12 hours. The mixture was diluted with ethyl acetate (25 c.c.) and the insolubles filtered off. The filtrate was concentrated to dryness in vacuo and the residue purified on silica gel to yield the title compound as an oil.
Workup
- temperaturethe suspension was refluxed for 21/2 hours
- filtrationthe insolubles filtered off
- concentrationThe filtrate was concentrated to dryness in vacuo
- customthe residue purified on silica gel
Sources & evidence
- ORD record
- ord-16814c7e21d94d219db243fcf1e78f37
- Source dataset
- uspto-grants-1992_08
- Patent number
- US05135940
Reaction notes
Loading…