HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1739426Generated: November 2, 2026
Dimethylformamide → 2-bromo-4-[6,7-dimethoxy-2-(4-pyridyl)methyl-phthalazin-1(2H)-on-4-yl]pyridine
https://huagongshe.com/reaction/1739426
Participants
| Role | Name | HCID | Charge |
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| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 4-(Chloromethyl)pyridinium chloride | HCID 74570 | — |
| Reactant | 2-bromo-4-(6,7-dimethoxyphthalazin-1(2H)-on-4-yl)pyridine | HCID 21840805 | — |
| Solvent | Water | HCID 962 | — |
| Product | 2-bromo-4-[6,7-dimethoxy-2-(4-pyridyl)methyl-phthalazin-1(2H)-on-4-yl]pyridine | HCID 15870297 | 78.4% |
Reaction Steps
2-Bromo-4-(6,7-dimethoxyphthalazin-1(2H)-on-4-yl)pyridine (362 mg), 4-picolyl chloride hydrochloride (180 mg), and potassium carbonate (359 mg) are added to dimethylformamide (10 ml), and the mixture is heated with stirring at 80° C. for three hours under nitrogen atmosphere. Water is added to the reaction mixture, and the mixture is extracted with methylene chloride. The extract is washed, dried, and concentrated to give 2-bromo-4-[6,7-dimethoxy-2-(4-pyridyl)methylphthalazin-1(2H)-on-4-yl]pyridine (355 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05965730 |
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| Source dataset | uspto-grants-1999_10 |
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| ORD ID | ord-1ee5755ca0934618bb07b1e373123573 |
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| Source note | uspto-grants-1999_10 |
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