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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 746623Generated: October 30, 2026

Bromine → HCID 821949, compound

https://huagongshe.com/reaction/746623

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
ReactantBenzo(b)thiophene-2-ethanolHCID 280609—
ReactantSodium BicarbonateHCID 516892—
SolventChloroformHCID 6212—
ProductHCID 821949HCID 821949—

Reaction Steps

To a cooled solution (0° C.) of 2-benzo[b]thiophen-2-yl-ethanol (5 g, 28.1 mmol) in CHCl3 (30 mL), bromine (1.73 mL, 33.7 mmol) was added dropwise. The reaction was stirred overnight while gradually being warmed to room temperature. Saturated NaHCO3 was added and the organic layer was separated. The aqueous layer was subsequently extracted with dichloromethane and the combined organic layers were dried (Na2SO4) and concentrated in vacuo to afford 2-(3-bromo-benzo[b]thiophen-2-yl)-ethanol in quantitative yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07393865B2
Source datasetuspto-grants-2008_07
ORD IDord-7b336e57dc5e410db07b2ddcb4028c5a
Source noteuspto-grants-2008_07