Methanol → HCID 15016279, compound
Reaction equation
[C:1]([CH:4]([O:6][C:7]1[N:11]=[CH:10][N:9]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[N:8]=1)[CH3:5])([OH:3])=O.[Na].[CH3:19][OH:20]>>[CH2:19]([O:20][C:1]([CH:4]([O:6][C:7]1[N:11]=[CH:10][N:9]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[N:8]=1)[CH3:5])=[O:3])[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1Participants
4
Procedure
A 5.5 g portion of the compound of Example 22 was added to 50 ml of methanol containing 0.54 g of sodium, and the mixture was heated briefly to reflux. It was then cooled and the solvent was removed under vacuum. To it was added 75 ml of toluene, 2.6 ml of benzyl chloride and 2.3 g of triethylamine, and the mixture was heated under reflux for 22 hours. It was then cooled, poured over ice-water, and extracted with ethyl acetate. The extract was washed with water and with saturated brine, and was dried with sodium sulfate and phase separation paper. It was then evaporated under vacuum, and the residue was recrystallized from ethanol-water to obtain 2.5 g of the desired product, m.p. 78°-80°.
Workup
- temperaturethe mixture was heated briefly
- temperatureto reflux
- temperatureIt was then cooled
- customthe solvent was removed under vacuum
- additionTo it was added 75 ml of toluene, 2.6 ml of benzyl chloride and 2.3 g of triethylamine
- temperaturethe mixture was heated
- temperatureunder reflux for 22 hours
- temperatureIt was then cooled
- additionpoured over ice-water
- extractionextracted with ethyl acetate
- washThe extract was washed with water and with saturated brine
- dry with materialwas dried with sodium sulfate and phase separation paper
- customIt was then evaporated under vacuum
- customthe residue was recrystallized from ethanol-water
Sources & evidence
- ORD record
- ord-b6720745f7f54c4eb417990d5edbbb2c
- Source dataset
- uspto-grants-1990_06
- Patent number
- US04931083
Reaction notes
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