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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 634270Generated: October 30, 2026

Iodine → HCID 68328272, compound

https://huagongshe.com/reaction/634270

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodineHCID 807—
ReactantPotassium HydroxideHCID 14797—
ReactantSodium ThiosulfateHCID 24477—
ReactantHCID 57263143HCID 57263143—
SolventDimethylformamideHCID 6228—
ProductHCID 68328272HCID 6832827254.8%

Reaction Steps

To a solution of 5-(1H-indol-5-yl)-[1,2,4]oxadiazol-3-ylamine (0.225 g, 1.12 mmol) in DMF (1 mL) was added KOH pellets (0.189 g, 3.36 mmol) at 0-5° C. The reaction was stirred for 10 min then I2 (0.567 g, 2.24 mmol) was added portionwise. The reaction was stirred another 2 h at RT then treated with saturated aq sodium thiosulphate (100 mL) to obtain a brownish precipitate. The precipitate was filtered and dried under vacuum. The crude was further treated with petroleum ether to give 5-(3-iodo-1H-indol-5-yl)-1,2,4-oxadiazol-3-amine (0.2 g, 54%) as off white solid. MS (ESI, pos. ion) m/z: 326.9 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321756B2
Source datasetuspto-grants-2016_04
ORD IDord-8287860ae4ad4897bc436d91d7a35106
Source noteuspto-grants-2016_04