HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1456002Generated: November 1, 2026
Methanol → 5-Methyl-7-methoxypyrazolo[1,5-a]pyrimidine
https://huagongshe.com/reaction/1456002
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 7-Chloro-5-methylpyrazolo[1,5-a]pyrimidine | HCID 10487287 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 5-Methyl-7-methoxypyrazolo[1,5-a]pyrimidine | HCID 22105868 | — |
Reaction Steps
Methanol (5 ml) was added to a suspension of 0.40 g of 60% sodium hydride in 10 ml of DMF. Then a solution of 1 g of 5-methyl-7-chloropyrazolo[1,5-a]pyrimidine in 5 ml of DMF was added dropwise thereinto at 0° C. and stirred at room temperature for 2 hours. The reaction mixture was poured into ice water and the crystals precipitated were collected by filtration and recrystallized from diethyl ether to provide 0.40 g of the title compound as colorless crystals. The structure and melting point of the compound obtained are shown in Table 1.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05843951 |
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| Source dataset | uspto-grants-1998_12 |
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| ORD ID | ord-8df2fa77ec254d09bbc55fef35457f82 |
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| Source note | uspto-grants-1998_12 |
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