Sodium Hydroxide → HCID 22163105, compound
Reaction equation
[Br:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[CH:7][C:8]([CH2:12][O:13][C:14]3[CH:15]=[C:16]([CH:24]=[CH:25][CH:26]=3)[O:17][CH:18]([CH3:23])[C:19]([O:21]C)=[O:20])=[N:9]2)=[CH:4][CH:3]=1.[OH-].[Na+]>CO>[Br:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[CH:7][C:8]([CH2:12][O:13][C:14]3[CH:15]=[C:16]([CH:24]=[CH:25][CH:26]=3)[O:17][CH:18]([CH3:23])[C:19]([OH:21])=[O:20])=[N:9]2)=[CH:4][CH:3]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of the ester (Step 3) (861 mg), methanol (13 mL) and 5N sodium hydroxide (0.54 mL) was heated under reflux for 2 hours. The reaction mixture was evaporated to approximately 4 mL and acidified to pH 4.5 with HCl (0.5N). This gave a gum which crystallized in methanol to give the title compound. mp 178°
Workup
- temperaturewas heated
- temperatureunder reflux for 2 hours
- customThe reaction mixture was evaporated to approximately 4 mL
- customThis gave a gum which
- customcrystallized in methanol
Sources & evidence
- ORD record
- ord-8c3df7408c4e44a9a7bf0853296d4bbe
- Source dataset
- uspto-grants-1990_10
- Patent number
- US04962203
Reaction notes
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