Hydrochloric Acid → HCID 14350502, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[NH:12][C:11]3[C:13]([O:19]C)=[CH:14][CH:15]=[C:16]([O:17]C)[C:10]=3[N:9]=2)=[CH:4][CH:3]=1.[Cl-].[Al+3].[Cl-].[Cl-].Cl>C1(C)C=CC=CC=1>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[NH:9][C:10]3[C:16]([OH:17])=[CH:15][CH:14]=[C:13]([OH:19])[C:11]=3[N:12]=2)=[CH:6][CH:7]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A 1.0 g portion of 2-(4-chlorophenyl)-4,7-dimethoxy-1H-benzimidazole, 1.40 g of aluminum chloride and 50 ml of toluene was heated at reflux for 2 hours, then cooled and poured into cold 3N hydrochloric acid. The resulting solid was collected and recrystallized from ethanol, giving 680 mg of the desired product, mp>300° C.
Workup
- temperatureat reflux for 2 hours
- temperaturecooled
- customThe resulting solid was collected
- customrecrystallized from ethanol
Sources & evidence
- ORD record
- ord-be80c0c0f7db4c64b2da912c059ac3c6
- Source dataset
- uspto-grants-1989_02
- Patent number
- US04808586
Reaction notes
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