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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 380596Generated: October 30, 2026

Chloroform → 7-Chloro-2,3-dihydro-5-nitro-1H-indole

https://huagongshe.com/reaction/380596

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroformHCID 6212—
ReactantChlorineHCID 24526—
Reactant5-NitroindolineHCID 36219—
SolventAcetic AcidHCID 176—
Product7-Chloro-2,3-dihydro-5-nitro-1H-indoleHCID 15541433—

Reaction Steps

To a solution of 5-nitroindoline (0.5 g, 3.1 mmol) in 15 mL of AcOH was added a solution of Cl2 in AcOH dropwise until 30% of starting material was consumed. The reaction mixture was concentrated in vacuo, yielding an oil which was subjected to column chromatography (CHCl3, neat) to provide 0.23 g (1.2 mmol) of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06303643B1
Source datasetuspto-grants-2001_10
ORD IDord-dc81af9bad784f49adced873facfd1cb
Source noteuspto-grants-2001_10