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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1915286Generated: November 1, 2026

Bromine → 1-(5-bromo-2,3-dihydro-1H-indol-1-yl)ethan-1-one

https://huagongshe.com/reaction/1915286

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
Reactant1-(2,3-Dihydro-1H-indol-1-yl)ethan-1-oneHCID 27673—
SolventAcetic AcidHCID 176—
Product1-(5-bromo-2,3-dihydro-1H-indol-1-yl)ethan-1-oneHCID 721847115.7%

Reaction Steps

To a solution of 1-(2,3-dihydro-indol-1-yl)-ethanone (58.0 g, 0.36 mol) in acetic acid (3000 mL) was added Br2 (87.0 g, 0.54 mol) at 10° C. The mixture was stirred at room temperature for 4 h. The precipitate was collected via filtration to give crude 1-(5-bromo-2,3-dihydro-indol-1-yl)-ethanone (100 g, 96%), which was used directly in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08614327B2
Source datasetuspto-grants-2013_12
ORD IDord-df723e54ee7a44b2ac350a8ecd8c4fe9
Source noteuspto-grants-2013_12