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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2263319Generated: November 3, 2026

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

https://huagongshe.com/reaction/2263319

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAcetic Acid Mixture with Hydrobromic AcidHCID 21893785—
Reactant2-(2,3-Dichlorophenyl)-2-oxoethyl thiocyanateHCID 86245058—
SolventAcetic AcidHCID 176—
Product2-Bromo-4-(2,3-dichlorophenyl)-1,3-thiazoleHCID 5344097194.6%

Reaction Conditions

Temperature130 °C

Reaction Steps

A 25% hydrogen bromide/acetic acid (30 ml) solution was added to a solution of 2-(2,3-dichlorophenyl)-2-oxoethyl thiocyanate (3.10 g, 12.6 mmol) in acetic acid (30 ml), and the mixture was stirred at 130° C. for 2 hours. Water (60 ml) was poured to the reaction mixture, and crystals were collected by filtration and washed with water to give 3.68 g (94.6%) of the desired product as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851473B2
Source datasetuspto-grants-2010_12
ORD IDord-44f17f47f3a84a26bb838905abf9e97c
Source noteuspto-grants-2010_12