HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 253473Generated: October 26, 2026
Chloroacetic Acid → 2-(Chloromethyl)-1-methylbenzimidazole
https://huagongshe.com/reaction/253473
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Chloroacetic Acid | HCID 300 | — |
| Reactant | N-Methyl-o-phenylenediamine | HCID 78498 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Sodium Bicarbonate | HCID 516892 | — |
| Product | 2-(Chloromethyl)-1-methylbenzimidazole | HCID 248044 | 87.8% |
Reaction Steps
N-methyl-phenylenediamine (1 g, 8.2 mmol) and chloroacetic acid (0.9 g, 9.4 mol) were dissolved in 5 N aqueous hydrochloric acid (10 mL) and stirred at 55° C. overnight. The reaction mixture was then diluted with water and basified with solid sodium bicarbonate to give a precipitate which was filtered, washed with water and dried to provide the desired compound (1.3 g, 87%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07872018B2 |
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| Source dataset | uspto-grants-2011_01 |
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| ORD ID | ord-ba330bcfa33e419daff6496203bb19c7 |
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| Source note | uspto-grants-2011_01 |
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