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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2085181Generated: October 27, 2026

Boron tribromide → 2-(5-Ethylthiophen-2-yl)-4-hydroxybenzo(b)furan

https://huagongshe.com/reaction/2085181

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBoron tribromideHCID 25134—
Reactant2-(5-Ethylthiophen-2-yl)-4-methoxybenzo(b)furanHCID 22729313—
Product2-(5-Ethylthiophen-2-yl)-4-hydroxybenzo(b)furanHCID 2272922681.8%

Reaction Steps

By the reactions in the same manner as in Starting Material Synthesis Example 5 using 2-(5-ethylthiophen-2-yl)-4-methoxybenzo(b)furan (1.00 g) and boron tribromide (1.0 ml), the title compound (774 mg) was obtained as colorless crystals, melting point 87-90° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06720320B2
Source datasetuspto-grants-2004_04
ORD IDord-3173b9762e0e408696997e5bc27e41f5
Source noteuspto-grants-2004_04