HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2121613Generated: October 28, 2026
4,6-Dichloro-2-methyl-5-nitropyrimidine → 4,6-Dichloro-2-methylpyrimidin-5-amine
https://huagongshe.com/reaction/2121613
Participants
| Role | Name | HCID | Charge |
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| Reactant | 4,6-Dichloro-2-methyl-5-nitropyrimidine | HCID 83192 | — |
| Catalyst | Iron | HCID 23925 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 4,6-Dichloro-2-methylpyrimidin-5-amine | HCID 736674 | — |
Reaction Steps
Add iron powder (6.0 g) to a solution of 4,6 dichloro-2-methyl-5-nitro-pyrimidine (6.50 g, 31 mmol) in acetic acid (11 mL) and MeOH (50 mL). Heat the resulting mixture at 65° C. for 1 h. After cooling, to ambient temperature, filter the mixture through a pad of celite, and evaporate the filtrate to dryness under reduced pressure. Treat the residue with 1N aq NaOH, and extract with EtOAc. Wash the EtOAc extract with water and saturated aq NaCl, dry over Na2SO4, filter, and concentrate in vacuo to obtain the title compound as a solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06696445B2 |
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| Source dataset | uspto-grants-2004_02 |
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| ORD ID | ord-4d603b19c0584eec840bfc0598fd6402 |
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| Source note | uspto-grants-2004_02 |
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