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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1038064Generated: October 26, 2026

Potassium Hydroxide → 4-Bromo-2,6-dimethylpyridine

https://huagongshe.com/reaction/1038064

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
ReactantPhosphorus oxybromideHCID 24613—
ReactantHCID 178429033HCID 178429033—
SolventChloroformHCID 6212—
Product4-Bromo-2,6-dimethylpyridineHCID 13081735220.7%

Reaction Conditions

Temperature100 °C

Reaction Steps

2,6-Dimethyl-pyridin-4-ol 10I (6.16 g, 50 mmol), PBr5 (11.9 g, 27.65 mmol) and POBr3 (2.5 mL, 24.6 mmol) was combined and CHCl3 (2.5 mL) was added. The reaction was heated at 100° C. for 5 hrs and then cooled in an ice bath. Solid KOH was added till PH reached 7-8 followed by extraction with Et2O (3×75 mL). The combined ether layer was dried and evaporated in vacuo to give a thick clear crude oil (10.1 g) as the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08546404B2
Source datasetuspto-grants-2013_10
ORD IDord-0fe995f212544c3883ed858beb75cc27
Source noteuspto-grants-2013_10