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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1852435Generated: November 1, 2026

Sodium Hydroxide → 5-Bromo-3-hydroxy-2,3-dihydrobenzothiophene 1,1-Dioxide

https://huagongshe.com/reaction/1852435

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantBenzo[b]thiophene, 5-bromo-, 1,1-dioxideHCID 23261743—
SolventAmmonium ChlorideHCID 25517—
Product5-Bromo-3-hydroxy-2,3-dihydrobenzothiophene 1,1-DioxideHCID 86729352—

Reaction Conditions

Temperature100 °C

Reaction Steps

5-Bromo-1-benzothiophene 1,1-dioxide (100 mg, 0.41 mmol) was suspended in 1N aqueous sodium hydroxide (2.0 mL), heated to 100° C. in a microwave, and allowed to stir for 15 minutes. The mixture was then allowed to cool to ambient temperature before the mixture was diluted with saturated aqueous ammonium chloride and extracted with EtOAc. The organic layer was washed with brine, dried over anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was used without further purification. LRMS (ESI) calc'd for C8H7BrO3S [M+Na]+: 285. Found: 285.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08962608B2
Source datasetuspto-grants-2015_02
ORD IDord-a709b100a83144a59508c20da3a20b0a
Source noteuspto-grants-2015_02