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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 900686Generated: October 29, 2026

Diethyl Ether → 4-(4-Chlorothiophen-2-yl)-1,3-thiazol-2-amine

https://huagongshe.com/reaction/900686

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantBromineHCID 24408—
ReactantThioureaHCID 2723790—
Reactant2-Acetyl-4-chlorothiopheneHCID 11105655—
SolventEthanolHCID 702—
Product4-(4-Chlorothiophen-2-yl)-1,3-thiazol-2-amineHCID 23030678—

Reaction Steps

Bromine was added to an ether solution of 4-chloro-2-acetylthiophene under ice cooling, and the mixture was stirred at room temperature for 2 hours to obtain a brominated compound. Thiourea was added to an EtOH solution of the brominated compound at room temperature, and the mixture was stirred overnight at 80° C. to obtain 2-amino-4-(4-chlorothiophen-2-yl)thiazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07361658B2
Source datasetuspto-grants-2008_04
ORD IDord-f5d94976bd19497ea4eb7126179aad9f
Source noteuspto-grants-2008_04