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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2380835Generated: October 31, 2026

Hydrochloric Acid → Ethanedioic acid, 1-[2-(4-iodo-2-pyridinyl)hydrazide]

https://huagongshe.com/reaction/2380835

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium HydroxideHCID 3939—
ReactantHCID 86641528HCID 86641528—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductEthanedioic acid, 1-[2-(4-iodo-2-pyridinyl)hydrazide]HCID 68712583158.9%

Reaction Steps

To a solution of ethyl [2-(4-iodopyridin-2-yl)hydrazino](oxo)acetate (0.15 g, 0.41 mmol) in tetrahydrofuran (3.5 mL) was added dropwise a solution of lithium hydroxide (0.030 g, 1.25 mmol) in water (1.5 mL). The resulting mixture was stirred at room temperature for 1 hour. Water was added and it was acidified using hydrochloric acid 2N until pH=3. The formed precipitate was filtered, rinsed with water and dried under vacuum to yield the title compound (0.20 g, 94%) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08258122B2
Source datasetuspto-grants-2012_09
ORD IDord-781e4423ea24461ab8f39f0ebd9c5bf6
Source noteuspto-grants-2012_09