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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1248542Generated: November 2, 2026

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

https://huagongshe.com/reaction/1248542

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 numberUS04525205
Source datasetuspto-grants-1985_06
ORD IDord-f2f9f0dc6f644998907e4eea3a083292
Source noteuspto-grants-1985_06