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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 238364Generated: October 30, 2026

Dimethylformamide → HCID 19625728, compound

https://huagongshe.com/reaction/238364

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantBenzyl BromideHCID 7498—
ReactantPotassium CarbonateHCID 11430—
Reactant2-Methyl-2H-pyrazol-3-ylamineHCID 136927—
SolventWaterHCID 962—
ProductHCID 19625728HCID 1962572829.7%

Reaction Conditions

Temperature70 °C

Reaction Steps

Benzyl bromide (4.97 g) was added dropwise to a dimethylformamide (15 mL) mixture of 1-methyl-1H-pyrazol-5-amine (2.69 g) and potassium carbonate (4.02 g) at a room temperature, and the obtained solution was then stirred at 70° C. for 3 hours. Thereafter, water was added to the reaction solution, and the obtained mixture was then extracted with ethyl acetate. The organic layer was washed with a saturated saline, and was then dried over anhydrous magnesium sulfate, followed by vacuum concentration. The residue was purified by column chromatography (Chromatorex NH, hexane:ethyl acetate=2:1), so as to obtain the title compound (1.54 g) in the form of a light yellow oily substance.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642626B2
Source datasetuspto-grants-2014_02
ORD IDord-7594c3ba2e6946bea5423876f674c6ed
Source noteuspto-grants-2014_02