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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1960118Generated: October 25, 2026

6-Bromo-3-hydroxy-3-methylindolin-2-one → 6-Bromo-3-methyl-1H-indole

https://huagongshe.com/reaction/1960118

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-Bromo-3-hydroxy-3-methylindolin-2-oneHCID 66580258—
SolventTetrahydrofuranHCID 8028—
Product6-Bromo-3-methyl-1H-indoleHCID 53402958—

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of 6-bromo-3-hydroxy-3-methyl-1,3-dihydro-2H-indol-2-one (0.25 g, 1.0 mmol) and BH3—S(CH3)2 (5.16 mL. 1.0 M, 5.16 mmol) in THF (20 mL) was heated at 60° C. The reaction was quenched with MeOH. Volatiles were removed. Chromatography over silica eluting with 4:1 hexane:EtOAc afforded the title compound. LC-MS: calculated for C9H8BrN: 210.07, observed m/e 211.0 (M+H)+ (Rt 1.14 min).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08410284B2
Source datasetuspto-grants-2013_04
ORD IDord-ec0511236f004791ba2484d0edcac0b6
Source noteuspto-grants-2013_04