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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 520597Generated: October 25, 2026

Thionyl Chloride → 1,4-Dimethyl-1H-pyrazole-3-carbonyl chloride

https://huagongshe.com/reaction/520597

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant1,4-Dimethyl-1H-pyrazole-3-carboxylic acidHCID 5325685—
Product1,4-Dimethyl-1H-pyrazole-3-carbonyl chlorideHCID 58356380—

Reaction Steps

1,4-Dimethyl-1H-pyrazole-3-carboxylic acid (190 mg) was weighed to a round bottom flask and thionyl chloride (1 ml) was added. The reaction was heated to reflux for 6 h then overnight at RT. After this time thionyl chloride was evaporated and the residue azeotroped with toluene to afford the title compound, 200 mg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09326987B2
Source datasetuspto-grants-2016_05
ORD IDord-c376dc8ae7c445a988d94f474b950868
Source noteuspto-grants-2016_05