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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 658444Generated: October 30, 2026

HCID 18542531, compound → 5-Amino-2,3-dihydro-1H-1-benzothiophene-1,1-dione

https://huagongshe.com/reaction/658444

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 18542531HCID 18542531—
CatalystPalladiumHCID 23938—
SolventTetrahydrofuran ethanolHCID 21873804—
Product5-Amino-2,3-dihydro-1H-1-benzothiophene-1,1-dioneHCID 4412226092.5%

Reaction Steps

Palladium on carbon (25 mg) was placed under an inert atmosphere and suspended in 1:1 v/v EtOH/THF (10 mL). A solution of 5-nitrobenzo[b]thiophene 1,1-dioxide (250 mg, 1.18 mmol) in EtOH/THF (1:1) was then added, and the reaction mixture placed under H2 atmosphere (1 Atm pressure) and stirred at RT for 3 h. Reaction is filtered through a Celite pad and washed well with MeOH to obtain the title compound (200 mg, 92%) as a brown solid: TLC (10% MeOH/DCM w/5% NH4OH), Rf=0.40; LC MS m/z 184.1 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08076488B2
Source datasetuspto-grants-2011_12
ORD IDord-fae8050d67014c06bfde0fab466381bd
Source noteuspto-grants-2011_12