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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1925308Generated: October 28, 2026

Hydrochloric Acid → HCID 67520377, compound

https://huagongshe.com/reaction/1925308

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium IodideHCID 4875—
ReactantSodium NitriteHCID 23668193—
ReactantHCID 67520047HCID 67520047—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
SolventEthyl AcetateHCID 8857—
ProductHCID 67520377HCID 67520377—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of methyl-4-amino-6-hydroxy-1-naphthoate (0.500 g, 2.30 mmol) in THF (2.5 mL) was cooled to 0° C. and 3 N HCl (5.0 mL) was added. A solution of sodium nitrite (0.175 g, 2.53 mmol) in water (1.2 mL) was added and the mixture stirred at 0° C. for 15 min. A solution of potassium iodide (0.764 g, 4.60 mmol) in water (1.2 ml) was added and the mixture was stirred at 0° C. for 1 h. EtOAc was added and the solution was poured into water. The aqueous phase was separated and extracted with EtOAc. The combined organic phases were washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated to afford a red-brown oil. This material was purified via column chromatography on silica gel (eluting with 0-50% EtOAc-hexane) to afford methyl 6-hydroxy-4-iodo-1-naphthoate as a tan solid. MS (ESI, pos. ion) m/z: 328.8 (M+H). Mass Calc'd for C12H9IO3: 328.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178557B2
Source datasetuspto-grants-2012_05
ORD IDord-e9b28d9f92f54a7e820cb85803a6c0f7
Source noteuspto-grants-2012_05