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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 638499Generated: October 30, 2026

Hydrochloric Acid → 4-(3,5-Dichloro-pyridin-2-yloxy)-phenol

https://huagongshe.com/reaction/638499

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHydroquinoneHCID 785—
ReactantPotassium HydroxideHCID 14797—
ReactantPyridine, 2,3,5-trichloro-HCID 27666—
SolventDimethyl SulfoxideHCID 679—
SolventWaterHCID 962—
Product4-(3,5-Dichloro-pyridin-2-yloxy)-phenolHCID 620880—

Reaction Steps

A mixture of 2,3,5-trichloropyridine (2.5 g, 13.7 mm), hydroquinone (3.02 g, 27.4 mm), KOH (3.07 g, 54.8 mm) and DMSO (10 ml) is heated to 160° for 3 hours. The mixture is poured into water, acidified with dilute HCl and extracted with ether. The ethereal solution is washed, dried and evaporated to dryness. The crude product is chromotographed on silica gel to give crystalline 4-(3,5-dichloropyridyloxy)phenol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04561882
Source datasetuspto-grants-1985_12
ORD IDord-dda42aa49df1418392c21a0d0716d76e
Source noteuspto-grants-1985_12