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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

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium hydrideHCID 24758—
Reactant7-Chloro-5-methylpyrazolo[1,5-a]pyrimidineHCID 10487287—
SolventDimethylformamideHCID 6228—
Product5-Methyl-7-methoxypyrazolo[1,5-a]pyrimidineHCID 22105868—

Reaction Conditions

Temperature0 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05843951
Source datasetuspto-grants-1998_12
ORD IDord-8df2fa77ec254d09bbc55fef35457f82
Source noteuspto-grants-1998_12