Hydrochloric Acid → HCID 178432185, compound
Reaction equation
[CH3:1][C:2]1[NH:3][C:4]2[C:5](=[CH:7][CH:8]=[C:9]([C:15]([O:17]C)=[O:16])[C:10]=2[C:11]([O:13]C)=[O:12])[N:6]=1.[OH-].[Na+].Cl>>[CH3:1][C:2]1[NH:3][C:4]2[C:5](=[CH:7][CH:8]=[C:9]([C:15]([OH:17])=[O:16])[C:10]=2[C:11]([OH:13])=[O:12])[N:6]=1Participants
4
Conditions
- Temperature
- 70 °C
Procedure
A mixture of dimethyl 2-methyl-4,5-benzimidazoledicarboxylate and 8 equivalents of 10N sodium hydroxide is stirred 4 hours at 70° C., cooled and acidified with hydrochloric acid to afford the title product as cream-colored crystals, mp 270° C. (dec).
Workup
- temperaturecooled
Sources & evidence
- ORD record
- ord-ac0f0ec26be04e6e920073042b9c46bd
- Source dataset
- uspto-grants-1996_05
- Patent number
- US05516751
Reaction notes
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