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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1270891Generated: November 3, 2026

N-bromobutanimide → 5-Bromo-2-oxindole

https://huagongshe.com/reaction/1270891

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-bromobutanimideHCID 67184—
ReactantOxindoleHCID 321710—
SolventAcetonitrileHCID 6342—
Product5-Bromo-2-oxindoleHCID 61119387%

Reaction Steps

A suspension of 1,3-dihydro-indol-2-one (1.3 g, 9.76 mmol) in acetonitrile (20 mL) at −5° C. was treated with N-bromosuccinimide, warmed to room temperature, stirred overnight and filtered to give 1.8 g (87% yield) of the desired product. MS (ESI(+)) m/e 209.9, 211.9 (M−H)−.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07202363B2
Source datasetuspto-grants-2007_04
ORD IDord-518deb84bf424a158b4b6462ab0ab5e9
Source noteuspto-grants-2007_04