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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 843889Generated: October 30, 2026

Isopropyl iodide → 1-(1-Methylethyl)-1H-pyrazole-3-ethanol

https://huagongshe.com/reaction/843889

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropyl iodideHCID 6362—
ReactantSodium CarbonateHCID 10340—
ReactantHCID 178520322HCID 178520322—
SolventDimethylformamideHCID 6228—
Product1-(1-Methylethyl)-1H-pyrazole-3-ethanolHCID 2261154426%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of 1.0 gm (9.0 mMol) 2-(3-pyrazolyl)-1-ethanol in 36 mL dimethylformamide were added 2.38 gm (22.5 mMol) sodium carbonate followed by the dropwise addition of a solution of 0.89 mL (9.0 mMol) 2-iodopropane in 8 mL dimethylformamide. The reaction mixture was heated to 100° C. for 18 hours. The reaction mixture was then cooled to ambient and then concentrated under reduced pressure. The residue was partitioned between water and dichloromethane. The organic phase was then washed with water followed by saturated aqueous sodium chloride and was then dried over sodium sulfate. The remaining organics were concentrated under reduced pressure to give 0.36 gm (26.0%) of the title compound as a brown oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06380201B1
Source datasetuspto-grants-2002_04
ORD IDord-4e4d901bc3754557b44e896258b6c103
Source noteuspto-grants-2002_04