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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1909913Generated: October 29, 2026

Diisopropylethylamine → 5-bromo-1-[(2,5-difluorophenyl)acetyl]-2,3-dihydro-1H-indole

https://huagongshe.com/reaction/1909913

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant2,5-Difluorophenylacetic acidHCID 522823—
Reactant5-BromoindolineHCID 3411566—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
SolventDimethylformamideHCID 6228—
Product5-bromo-1-[(2,5-difluorophenyl)acetyl]-2,3-dihydro-1H-indoleHCID 6682386290%

Reaction Steps

To a mixture of (2,5-difluorophenyl)acetic acid (0.869 g, 5.05 mmol) and HATU (2.112 g, 5.55 mmol) in N,N-Dimethylformamide (DMF) (10 mL) was added Hunig's base (0.882 mL, 5.05 mmol), and the resulting mixture was stirred for 15 minutes at room temperature. 5-bromo-2,3-dihydro-1H-indole (1 g, 5.05 mmol) was added, and the reaction mixture was stirred at room temperature for 1 hour. The mixture was poured onto water, and the resulting aqueous mixture was filtered to afford 5-bromo-1-[(2,5-difluorophenyl)acetyl]-2,3-dihydro-1H-indole (1.6 g) as a tan solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08598156B2
Source datasetuspto-grants-2013_12
ORD IDord-df83c659905a4334ab2fb916102e4acb
Source noteuspto-grants-2013_12