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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2409100Generated: November 1, 2026

1-Butanol → methyl 5-(5-chloro-4-(methylamino)pyrimidin-2-ylamino)-1-methyl-1H-pyrazole-3-carboxylate

https://huagongshe.com/reaction/2409100

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-ButanolHCID 263—
ReactantHydrochloric AcidHCID 313—
Reactantmethyl 5-amino-1-methyl-1H-pyrazole-3-carboxylateHCID 13324840—
Reactant2,5-dichloro-N-methylpyrimidin-4-amineHCID 18981247—
Solvent1,4-DioxaneHCID 31275—
Productmethyl 5-(5-chloro-4-(methylamino)pyrimidin-2-ylamino)-1-methyl-1H-pyrazole-3-carboxylateHCID 6908113064.6%

Reaction Conditions

Temperature130 °C

Reaction Steps

To a 30 mL microwave vial was added 0.98 g of 2,5-dichloro-N-methylpyrimidin-4-amine, 0.78 g of methyl 5-amino-1-methyl-1H-pyrazole-3-carboxylate, 10 mL of 1-butanol and 0.13 mL of 4M hydrogen chloride in dioxane. The vial was capped and the reaction was heated in a microwave for 30 minutes at 130° C. As the reaction cooled, a precipitate fell out. Filter the precipitate and rinse with a small amount of n-butanol. Drying the cake yielded 0.964 g of methyl 5-(5-chloro-4-(methylamino)pyrimidin-2-ylamino)-1-methyl-1H-pyrazole-3-carboxylate which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815882B2
Source datasetuspto-grants-2014_08
ORD IDord-3bf2c040ccb84b0d959337fc1d1d89e3
Source noteuspto-grants-2014_08