Methanol → HCID 22710914, compound
Reaction equation
Cl.[CH3:2][C:3]1[CH:8]=[C:7]([C:9]2[CH:17]=[CH:16][C:12]([C:13]([OH:15])=[O:14])=[CH:11][CH:10]=2)[CH:6]=[CH:5][N:4]=1.S(Cl)([Cl:20])=O.[CH3:22]O>>[ClH:20].[CH3:2][C:3]1[CH:8]=[C:7]([C:9]2[CH:17]=[CH:16][C:12]([C:13]([O:15][CH3:22])=[O:14])=[CH:11][CH:10]=2)[CH:6]=[CH:5][N:4]=1Participants
4
Procedure
In methanol (100 ml), 4-(2-methylpyridin-4-yl)benzoic acid hydrochloride (5.00 g) was dissolved. To the resulting solution, thionyl chloride (1.73 ml) was added dropwise, followed by heating under reflux for 3.5 hours. The reaction mixture was distilled to remove the solvent and pale brown crystals thus precipitated were washed with ethyl acetate, whereby the title compound (4.70 g, 89%) was obtained.
Workup
- temperatureby heating
- temperatureunder reflux for 3.5 hours
- distillationThe reaction mixture was distilled
- customto remove the solvent and pale brown crystals
- customthus precipitated
- washwere washed with ethyl acetate, whereby the title compound (4.70 g, 89%)
- customwas obtained
Sources & evidence
- ORD record
- ord-5ec84662694e4045820b43e757d2e59b
- Source dataset
- uspto-grants-2004_06
- Patent number
- US06747023B1
Reaction notes
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