HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2164269Generated: October 31, 2026
Hydrochloric Acid → 1,2-Dihydro-6-methyl-2-oxo-5-[4-(1H-imidazol-1-yl)-phenyl]-3-pyridine-carbonitrile, monohydrochloride
https://huagongshe.com/reaction/2164269
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 5-(4-Imidazol-1-yl-phenyl)-6-methyl-2-oxo-1,2-dihydro-pyridine-3-carbonitrile | HCID 10446136 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 1,2-Dihydro-6-methyl-2-oxo-5-[4-(1H-imidazol-1-yl)-phenyl]-3-pyridine-carbonitrile, monohydrochloride | HCID 20406061 | — |
Reaction Steps
To a suspension of 55.8 g of 1,2-dihydro-6-methyl-2-oxo-5-[4-(1H-imidazol-1-yl)phenyl]-3-pyridine carbonitrile in 500 ml of 10% aqueous methanol is added concentrated hydrochloric acid with stirring to a pH of 2. After cooling at 0° C. overnight, the solid is collected, washed with cold methanol followed by ether, and dried in vacuo at 120° for two hours to give 62.6 g of the monohydrochloride as light beige powder, mp 322°-326° C., dec.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04503061 |
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| Source dataset | uspto-grants-1985_03 |
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| ORD ID | ord-8db117b97bfb40a8b67917c86a5e4fd5 |
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| Source note | uspto-grants-1985_03 |
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