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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 340069Generated: October 30, 2026

Iodine → HCID 178436892, compound

https://huagongshe.com/reaction/340069

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodineHCID 807—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 71238203HCID 71238203—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 178436892HCID 17843689291%

Reaction Steps

To a solution of 6-(2-ethyl-5-fluoro-4-methoxy-phenyl)-1H-indazole (Preparation 15, 1.46 g, 5.4 mmol) in DMF (20 mL) was added KOH (1.14 g, 20.3 mmol) and the mixture was stirred for 5 minutes. A solution of iodine (2.75 g, 10.8 mmol) in DMF (5 mL) was slowly added and the reaction was stirred at room temperature for 30 minutes. The reaction mixture was diluted with water (100 mL) and extracted with EtOAc (100 mL). The organic layer was washed with water (2×100 mL) and saturated sodium metabisulfite aqueous solution (100 mL), dried over MgSO4 and concentrated in vacuo to furnish the title compound (1.94 g) in a 91% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08895544B2
Source datasetuspto-grants-2014_11
ORD IDord-dc85504c53544bd98d99229e4b84d251
Source noteuspto-grants-2014_11