Acetone → HCID 20764334, compound
Reaction equation
[OH:1][C:2]1[CH:7]=[C:6]([C:8]([CH3:16])([CH3:15])[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH3:14])[CH:5]=[C:4]([OH:17])[C:3]=1[CH:18]1[CH:23]2[CH2:24][CH:21]([C:22]2([CH3:26])[CH3:25])[C:20]([C:27]([OH:29])=[O:28])=[CH:19]1.C(=O)([O-])[O-].[K+].[K+].Cl[CH2:37][C:38](=[O:40])[CH3:39].[I-].[CH3:42][C:43]([CH3:45])=[O:44]>>[C:38]([CH2:39][O:1][C:2]1[CH:7]=[C:6]([C:8]([CH3:15])([CH3:16])[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH3:14])[CH:5]=[C:4]([O:17][CH2:42][C:43](=[O:44])[CH3:45])[C:3]=1[CH:18]1[CH:23]2[CH2:24][CH:21]([C:22]2([CH3:26])[CH3:25])[C:20]([C:27]([OH:29])=[O:28])=[CH:19]1)(=[O:40])[CH3:37]Participants
6
Procedure
To a suspension of compound XII (0.109 g, 0.25 mmol) and potassium carbonate (0.138 g, 1 mmol) in anhydrous acetone (4 mL) was added chloroacetone (60 microliters, 0.75 mmol). The reaction mixture was stirred at reflux and a catalytic amount of potasssium iodide was added. After 3 hours, the solids were removed by filtration and washed with dichloromethane. The dichloromethane solvent was combined with the acetone filtrate and the combined solvents removed by evaporation. The resulting residue was purified on a reverse phase C-18 column using 70% acetonitrile (30% water, 0.1% acetic acid) to afford 86 mg of pure (XIII) (67% yield).
Workup
- temperatureat reflux
- customthe solids were removed by filtration
- washwashed with dichloromethane
- customthe combined solvents removed by evaporation
- customThe resulting residue was purified on a reverse phase C-18 column
Sources & evidence
- ORD record
- ord-8da2acc502394f9f8be65bd68f2fb479
- Source dataset
- uspto-grants-2005_03
- Patent number
- US06864291B1
Reaction notes
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