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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 425480Generated: October 26, 2026

Trifluoroacetic acid → 3-(5-bromo-2-hydroxyphenyl)-1-pentyl-1,3-dihydro-2H-indol-2-one

https://huagongshe.com/reaction/425480

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTriethylsilaneHCID 12052—
Reactant3-(5-bromo-2-hydroxyphenyl)-3-hydroxy-1-pentyl-1,3-dihydro-2H-indol-2-oneHCID 58872478—
SolventDichloromethaneHCID 6344—
Product3-(5-bromo-2-hydroxyphenyl)-1-pentyl-1,3-dihydro-2H-indol-2-oneHCID 58872536—

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 3-(5-bromo-2-hydroxyphenyl)-3-hydroxy-1-pentyl-1,3-dihydro-2H-indol-2-one (2.22 g, 5.64 mmol) in dichloromethane (10.0 mL) were added trifluoroacetic acid (1.00 mL) and triethylsilane (1.00 mL) at ambient temperature. The reaction mixture was stirred at 50° C. for 15 hrs and concentrated in vacuo to dryness to give the title compound: MS (ES+) m/z 374 (M+1), 376 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08106087B2
Source datasetuspto-grants-2012_01
ORD IDord-71513cb4a5f446e2943b2e9c664ee8bc
Source noteuspto-grants-2012_01