Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 29429Generated: October 29, 2026

Methyl iodide → 4-Methoxy-5-hydroxymethyl-3-methyl-benzofuran-2-carboxylic acid tert-butyl ester

https://huagongshe.com/reaction/29429

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantPotassium CarbonateHCID 11430—
Reactant4-Hydroxy-5-hydroxymethyl-3-methyl-benzofuran-2-carboxylic acid tert-butyl esterHCID 68714883—
SolventDimethylformamideHCID 6228—
Product4-Methoxy-5-hydroxymethyl-3-methyl-benzofuran-2-carboxylic acid tert-butyl esterHCID 68715257100.2%

Reaction Steps

To 190 mg of 4-hydroxy-5-hydroxymethyl-3-methyl-benzofuran-2-carboxylic acid tert-butyl ester was added 1 mL of iodomethane, 200 mg of K2CO3 and 3 mL of DMF. The mixture was stirred at room temperature overnight. The reaction mixture was washed with brine and extracted with ethyl acetate. The combined ethyl acetate solution was washed with brine. Removal of the solvent gave 200 mg of 4-methoxy-5-hydroxymethyl-3-methyl-benzofuran-2-carboxylic acid tert-butyl ester as a pale yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07420001B2
Source datasetuspto-grants-2008_09
ORD IDord-5707b73b656e4248b54cae0d228be7a4
Source noteuspto-grants-2008_09