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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 423250Generated: October 30, 2026

Methyl iodide → 4-Hydroxyisophthalic acid 1-ethyl ester 3-methyl ester

https://huagongshe.com/reaction/423250

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantSodium BicarbonateHCID 516892—
Reactant5-(Ethoxycarbonyl)-2-hydroxybenzoic acidHCID 53959762—
SolventDimethylformamideHCID 6228—
Product4-Hydroxyisophthalic acid 1-ethyl ester 3-methyl esterHCID 5862973687.3%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 4-hydroxyisophthalic acid 1-ethyl ester (4.51 g) in DMF (36 mL) were added methyl iodide (3.66 g) and sodium hydrogen carbonate (2.16 g). The mixture was stirred at 60° C. for 2 hours and then allowed to stand for cooling down to room temperature. The resulting precipitated solid formed upon addition of water was filtered off to give the title compound (4.20 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08101774B2
Source datasetuspto-grants-2012_01
ORD IDord-d8b241858f8e42eca531cd47128c03fc
Source noteuspto-grants-2012_01