Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1386349Generated: October 25, 2026

Ethyl 2-(4-bromo-2-nitrophenyl)acetate → 6-bromo-2,3-dihydro-1H-indol-2-one

https://huagongshe.com/reaction/1386349

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 2-(4-bromo-2-nitrophenyl)acetateHCID 23247724—
CatalystIronHCID 23925—
SolventAcetic AcidHCID 176—
Product6-bromo-2,3-dihydro-1H-indol-2-oneHCID 277328943%

Reaction Steps

Using a procedure analogous to that described for the starting material in Example 57, ethyl(4-bromo-2-nitrophenyl)acetate (26 g, 90 mmol) was treated with iron in acetic acid. The product thus obtained was recystallised from ether/isohexanes to give 6-bromooxindole (8.2 g, 42%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06265411B1
Source datasetuspto-grants-2001_07
ORD IDord-f7fae3e4e5694ee78bf254612174d1f3
Source noteuspto-grants-2001_07