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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 619077Generated: October 25, 2026

Thiourea → 4-(2-Fluoro-5-trifluoromethyl-phenyl)-thiazol-2-ylamine hydrobromide

https://huagongshe.com/reaction/619077

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThioureaHCID 2723790—
Reactant2-Fluoro-5-(trifluoromethyl)phenacyl bromideHCID 2778784—
SolventMethanolHCID 887—
Product4-(2-Fluoro-5-trifluoromethyl-phenyl)-thiazol-2-ylamine hydrobromideHCID 21845595—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of 5.8 g of 2-bromo-1-(2-fluoro-5-trifluoromethyl-phenyl)-ethanone in 44 ml of methanol was treated at room temperature with 2.2 g of thiourea and boiled for 1 hour. 2.8 g of 4-(2-fluoro-5-trifluoromethyl-phenyl)-thiazol-2-ylamine hydrobromide separated as colorless crystals upon cooling to 0° C. and after the addition of 15 ml of diethyl ether.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05958910
Source datasetuspto-grants-1999_09
ORD IDord-f4535cf8a7314c42ba0ce4655d0e8876
Source noteuspto-grants-1999_09