Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 215826Generated: October 29, 2026

Hydrochloric Acid → HCID 67297135, compound

https://huagongshe.com/reaction/215826

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethylparabenHCID 7456—
ReactantPotassium CarbonateHCID 11430—
Reactant5-Bromo-2-methoxypyridineHCID 2734895—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventPyridineHCID 1049—
ProductHCID 67297135HCID 6729713541.5%

Reaction Steps

A suspension of 5-bromo-2-methoxy-pyridine (5.9 g, 30 mmol), methyl 4-hydroxy-benzoate (4.0 g, 26 mmol), K2CO3 (4.7 g, 34 mmol), Cu powder (0.25 g, 4 mmol) and CuI (0.25 g, 1.3 mmol) in pyridine (25 ml) was refluxed for 10 h and allowed to cool to room temperature. The resulting mixture was poured in 100 g of crushed ice, neutralized with HCl to pH 7.5 and extracted with diethyl ether. The extract was evaporated in vacuo, the residue was separated by column chromatography on silica (eluent hexanes-ethyl acetate 8:1) to give 2.8 g (35%) of 4-(6-methoxy-pyridin-3-yloxy)-benzoic acid methyl ester as colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08193192B2
Source datasetuspto-grants-2012_06
ORD IDord-3d998b44c8ac4845b5513f068e9d07f0
Source noteuspto-grants-2012_06