Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethyl Sulfate | HCID 6497 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | HCID 22153307 | HCID 22153307 | — |
| Solvent | Acetone | HCID 180 | — |
| Product | HCID 22153306 | HCID 22153306 | — |
Reaction Steps
To a stirred solution of 143.6 g (0.5 mole) of 2-(4-bromomethylphenyl)benzimidazole and 42.0 g (0.5 mole) of sodium bicarbonate in 85% aqueous acetone is added 66.0 g (0.5 mole) of dimethylsulfate dropwise. The mixture is stirred at 40° C. for about 3 hours until thin-layer chromatography indicates that the reaction is complete. The solvent is removed in vacuo, and the solid product is washed with water to eliminate sodium salts and purified by recrystallization from benzene.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04978476 |
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| Source dataset | uspto-grants-1990_12 |
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| ORD ID | ord-e9e20267c51b4baa8fd2cf769de88779 |
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| Source note | uspto-grants-1990_12 |
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