Methanol → HCID 19806764, compound
Reaction equation
CS([C:5]1[C:9](S(C)(=O)=O)=[C:8]([C:14]#[N:15])[S:7][N:6]=1)(=O)=O.[C:16](=[O:19])([O-])[O-].[Na+].[Na+].[OH2:22].[CH3:23]O>>[CH3:23][O:22][C:5]1[C:9]([O:19][CH3:16])=[C:8]([C:14]#[N:15])[S:7][N:6]=1Participants
5
Procedure
A mixture of the compound of Example 35 (3.95 g, 0.015 mol) and sodium carbonate (1.58 g, 0.015 mole) in 40 ml methanol can be stirred at reflux for 6 hours. On cooling, the mixture can be poured into water and the precipitate collected by suction filtration. Recrystallization of the solid from ethanol can give the pure title compound.
Workup
- temperatureat reflux for 6 hours
- temperatureOn cooling
- filtrationthe precipitate collected by suction filtration
- customRecrystallization of the solid from ethanol
Sources & evidence
- ORD record
- ord-cda145a2e6c44cdd8ac697eec231d320
- Source dataset
- uspto-grants-1992_12
- Patent number
- US05171860
Reaction notes
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