4'-Hydroxyacetophenone → 1-{4-[2-(4-Chlorophenyl)ethoxy]phenyl}ethanone
Reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=[O:10])[CH3:9])=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].S(O[CH2:22][CH2:23][C:24]1[CH:29]=[CH:28][C:27]([Cl:30])=[CH:26][CH:25]=1)(=O)(=O)C>CN(C=O)C>[Cl:30][C:27]1[CH:28]=[CH:29][C:24]([CH2:23][CH2:22][O:1][C:2]2[CH:7]=[CH:6][C:5]([C:8](=[O:10])[CH3:9])=[CH:4][CH:3]=2)=[CH:25][CH:26]=1Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 80 °C
Procedure
To a stirred solution of 4′-hydroxyacetophenone (1.2 mmol) in DMF (10 mL) at rt, solid potassium carbonate (3.0 mmol) was added. 4-chlorophenethyl mesylate (1.0 mmol) was added to the reaction mixture and heated to 80° C. until completion according to General Procedure Q1, as indicated by TLC or HPLC. After cooling to rt, the reaction mixture was quenched by removing solvent in vacuuo and treating the residue with saturated sodium bicarbonate. The aqueous layer was poured into EtOAc (20 ml) and washed with H2O (2×10 ml) and brine (15 ml). The organic layer was dried over magnesium sulfate, and the solvent was removed in vacuuo to afford the desired 1-{4-[2-(4-chlorophenyl)ethoxy]phenyl}ethanone. The crude alkylated acetophenone was used for further transformation without any purification or after purifying using silica gel column chromatography.
Workup
- temperatureAfter cooling to rt
- customthe reaction mixture was quenched
- customby removing solvent in vacuuo
- additiontreating the residue with saturated sodium bicarbonate
- additionThe aqueous layer was poured into EtOAc (20 ml)
- washwashed with H2O (2×10 ml) and brine (15 ml)
- dry with materialThe organic layer was dried over magnesium sulfate
- customthe solvent was removed in vacuuo
Sources & evidence
- ORD record
- ord-8666a1d26c2f46d0895a0a4c6498fbc2
- Source dataset
- uspto-grants-2010_06
- Patent number
- US07737285B2
Reaction notes
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