HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1876143Generated: November 2, 2026
2-Pyridinamine, 5-iodo- → N-(5-Methoxypyridin-2-yl)-2-methylquinazolin-4-amine
https://huagongshe.com/reaction/1876143
Participants
| Role | Name | HCID | Charge |
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| Reactant | 2-Pyridinamine, 5-iodo- | HCID 88579 | — |
| Reactant | Sodium Methoxide | HCID 10942334 | — |
| Reactant | 2-Amino-5-methoxypyridine | HCID 11320934 | — |
| Catalyst | Copper | HCID 23978 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | N-(5-Methoxypyridin-2-yl)-2-methylquinazolin-4-amine | HCID 42625988 | 31% |
Reaction Steps
2-Amino-5-methoxy-pyridine. A mixture of 2-amino-5-iodo-pyridine (1 g, 4.54 mmol) in 20 mL of absolute methanol with 400 mg of copper powder and sodium methoxide (6 mmol) was heated at 160° C. overnight in a seal tube. The reaction mixture was cooled to room temperature, diluted with 80 mL of methanol and filtered through a pad of celite. The filtrate was concentrated and the residue was purified by chromatography (80% ethyl acetate/hexane) to give the title compound (174 mg, 31%). 1H NMR (CDCl3): 7.78 (d, J=2.7, 1H), 7.09 (dd, J=3.0, 9.0, 1H), 6.48 (d, J=9.0, 1H), 3.78 (s, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08309562B2 |
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| Source dataset | uspto-grants-2012_11 |
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| ORD ID | ord-557a6a390b1248d4a40e0baacbcba354 |
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| Source note | uspto-grants-2012_11 |
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