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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 362258Generated: October 26, 2026

Ethanol → 3-(Benzo[b]furan-3-yl)-5,6-dihydroimidazo[2,1-b]thiazole monohydrobromide monohydrate

https://huagongshe.com/reaction/362258

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantEthylenethioureaHCID 2723650—
Reactant1-(Benzofuran-3-yl)-2-bromoethanoneHCID 2776580—
SolventAcetic AcidHCID 176—
Product3-(Benzo[b]furan-3-yl)-5,6-dihydroimidazo[2,1-b]thiazole monohydrobromide monohydrateHCID 7028628440.6%

Reaction Steps

A mixture of 3-(2-bromoacetyl)benzo[b]furan (0.25 g), 2-imidazolidinethione (0.11 g), ethanol (30 ml) and acetic acid (20 ml) was heated under reflux for 20 hours, then allowed to cool to ambient temperature. The resulting solid was collected by filtration, washed with ether, and dried in vacuo at ambient temperature to give 3-(benzo[b]furan-3-yl)-5,6-dihydroimidazo[2,1-b]thiazole monohydrobromide monohydrate as a white solid (0.145 g), m.p. 242°-244° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05869492
Source datasetuspto-grants-1999_02
ORD IDord-5ea882d0114b46a19725bfebd4a0ef53
Source noteuspto-grants-1999_02