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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269798Generated: October 25, 2026

Acetone → ethyl 1-benzyl-1H-pyrazole-4-carboxylate

https://huagongshe.com/reaction/269798

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetoneHCID 180—
ReactantBenzyl BromideHCID 7498—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 178438038HCID 178438038—
Productethyl 1-benzyl-1H-pyrazole-4-carboxylateHCID 15237993—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of Ethyl-4-pyrazole-carboxylate (14.0 g, 100 mmol) in Acetone (200 ml) was added potassium carbonate (27.6 g, 200 mmol) and Benzyl Bromide (12 ml, 100 mmol). The mixture was heated to 60° C. and stirred for 14 hours. The reaction mixture was cooled and filtered to remove any solids. The filtrate was concentrated and the residue was purified using column chromatography (3:1 Hexanes:Ethyl Acetate) to yield ethyl 1-benzylpyrazole-4-carboxylate (19.0 g, HNMR)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07449473B2
Source datasetuspto-grants-2008_11
ORD IDord-46c84bd454b64d45a9a1b7ededd17c2b
Source noteuspto-grants-2008_11