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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 246642Generated: October 25, 2026

Iodine → HCID 178477877, compound

https://huagongshe.com/reaction/246642

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodineHCID 807—
ReactantPotassium HydroxideHCID 14797—
Reactant6-chloro-1H-indazoleHCID 417524—
SolventDimethylformamideHCID 6228—
ProductHCID 178477877HCID 17847787783%

Reaction Conditions

Temperature30 °C

Reaction Steps

A mixture of 6-chloro-1H-indazole (2 g, 13.1 mmol), KOH (2.2 g, 39.3 mmol) and I2 (6.6 g, 26.2 mmol) in dry DMF (20 mL) was heated to 30° C. for 16 hours. Reaction quenched with water, product was extracted with ethyl acetate (150 mL), organic phase washed with water (3×10 mL), brine (2×10 mL) and dried over Na2SO4, then filtered and concentrated to afford 6-chloro-3-iodo-1H-indazole (3.0 g, 83%) as a yellow solid. LCMS: (M+H)+=279.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08658646B2
Source datasetuspto-grants-2014_02
ORD IDord-ba94e7cba97045b59f9c65c67025b88a
Source noteuspto-grants-2014_02