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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 271656Generated: October 25, 2026

Sodium Chloride → 2-Hydroxy-5-iodo-3-methylbenzoic acid

https://huagongshe.com/reaction/271656

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ChlorideHCID 5234—
ReactantSodium IodideHCID 5238—
ReactantSodium HydroxideHCID 14798—
ReactantBenzoic acid, 2-hydroxy-3-methyl-, methyl esterHCID 31835—
ReactantSodium HypochloriteHCID 23665760—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
Product2-Hydroxy-5-iodo-3-methylbenzoic acidHCID 15908685—

Reaction Conditions

Temperature-5 °C

Reaction Steps

14.9 mL (24.1 mmol) sodium hypochlorite solution (10 percent by weight in water) is added dropwise to a solution of 4.0 g (24.1 mmol) methyl 2-hydroxy-3-methyl-benzoate, 3.6 g (24.1 mmol) NaI, 0.96 g (24.1 mmol) NaOH in 100 mL MeOH at −5° C. over 40 min. The reaction is stirred for 30 min at −5° C. and 5 days at RT. The solvent is eliminated i.vac. and the residue is taken up in 80 mL water and 50 mL DCM. After the organic phase has been saturated with NaCl it is extracted twice with DCM. The combined organic extracts are filtered and the solvent is eliminated i.vac. The product is further reacted without any more purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07452911B2
Source datasetuspto-grants-2008_11
ORD IDord-b5bebfbd22c54301ab2733631abb790c
Source noteuspto-grants-2008_11