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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1653952Generated: October 29, 2026

Sulfuryl chloride → 3-Carbamoyl-4-chloro-5-difluoromethoxy-1-methylpyrazole

https://huagongshe.com/reaction/1653952

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuryl chlorideHCID 24648—
Reactant5-(difluoromethoxy)-1-methyl-1H-pyrazole-3-carboxamideHCID 53731990—
SolventAcetonitrileHCID 6342—
Product3-Carbamoyl-4-chloro-5-difluoromethoxy-1-methylpyrazoleHCID 22912804—

Reaction Steps

23,6 g (0.12 mole) 3-Carbamoyl-5-difluoromethoxy-1-methylpyrazole in 720 ml acetonitrile was treated with 16.7 g (0.12 mole) sulfuryl chloride and the mixture stirred for 10 minutes at room temperature. It was then concentrated and recrystallised from diisopropyl ether/ethyl acetate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05405829
Source datasetuspto-grants-1995_04
ORD IDord-1d40f4b59a2d43c0bbebe72f3186fd20
Source noteuspto-grants-1995_04