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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 392680Generated: October 29, 2026

Iodine → HCID 178516519, compound

https://huagongshe.com/reaction/392680

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodineHCID 807—
ReactantPotassium CarbonateHCID 11430—
ReactantPotassium bisulfateHCID 516920—
ReactantHCID 178516518HCID 178516518—
SolventWaterHCID 962—
ProductHCID 178516519HCID 178516519—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 2,4-dihydroxypyridine (1.0 eq), K2CO3 (1.0 eq), and water was stirred at 100° C. so that it became homogeneous. With continued stirring and heating, I2 (1.0 eq) was added in portions, causing the evolution of gas. When the solid I2 was consumed, the mixture was cooled and acidified with aqueous KHSO4 (1.0 eq), generating a precipitate. The precipitate was collected by filtration, rinsed with water, and stored under high vacuum, to give 2,4-dihydroxy-3-iodopyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06803370B2
Source datasetuspto-grants-2004_10
ORD IDord-20f24aedfaa64334b81c5857dc084546
Source noteuspto-grants-2004_10