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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2263251Generated: October 25, 2026

Water → 2-Bromo-4-(2,4-difluorophenyl)-1,3-thiazole

https://huagongshe.com/reaction/2263251

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAcetic Acid Mixture with Hydrobromic AcidHCID 21893785—
Reactant2,4-Difluorophenacyl thiocyanateHCID 45036827—
SolventAcetic AcidHCID 176—
Product2-Bromo-4-(2,4-difluorophenyl)-1,3-thiazoleHCID 5344097073.6%

Reaction Conditions

Temperature130 °C

Reaction Steps

A 25% hydrogen bromide/acetic acid (25 ml) solution was added to a solution of 2-(2,4-difluorophenyl)-2-oxoethyl thiocyanate (3.39 g, 15.9 mmol) in acetic acid (25 ml), and the mixture was stirred at 130° C. for 2 hours and stirred at room temperature for 1 hour. Water was poured to the reaction mixture, and crystals were collected by filtration and washed with water to give 3.23 g (73.6%) of the desired product as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851473B2
Source datasetuspto-grants-2010_12
ORD IDord-f544e0d9826a4c9e823ab4ed68037d1f
Source noteuspto-grants-2010_12