Sodium Methoxide → HCID 21500327, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12]3[CH:13]=[CH:14][CH:15]=[CH:16][C:11]=3[N:10]=[C:9]2[NH:17][CH2:18][CH2:19][CH2:20]Cl)=[CH:4][CH:3]=1.C[O-].[Na+]>CO>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12]3[CH:13]=[CH:14][CH:15]=[CH:16][C:11]=3[N:10]3[CH2:20][CH2:19][CH2:18][N:17]=[C:9]23)=[CH:4][CH:3]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
1-(4-Chlorophenyl)-2-(3-chloropropylamino)benzimidazole (5mM) is added to a stirred solution of sodium methoxide (0.01 mole) in methanol (50 ml.) and the mixture heated under reflux for 5 hours. After removal of the methanol the residue is diluted with water, extracted with chloroform and the combined extracts washed and dried over magnesium sulphate. Evaporation gives the title compound as an oil which affords a salt on treatment with a suitable acid in an anhydrous medium.
Workup
- temperaturethe mixture heated
- temperatureunder reflux for 5 hours
- customAfter removal of the methanol the residue
- additionis diluted with water
- extractionextracted with chloroform
- washthe combined extracts washed
- dry with materialdried over magnesium sulphate
- customEvaporation
Sources & evidence
- ORD record
- ord-a116700aa2be437e87cc8feacd87bade
- Source dataset
- uspto-grants-1976_11
- Patent number
- US03989709
Reaction notes
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