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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 250070Generated: October 29, 2026

Methanol → 6-(Pyridin-3-yl)pyrimidin-4-amine

https://huagongshe.com/reaction/250070

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium CarbonateHCID 10340—
Reactant4-Amino-6-chloropyrimidineHCID 238012—
Reactant3-Pyridinylboronic acidHCID 2734378—
CatalystDichlorobis(triphenylphosphine)palladiumHCID 6102075—
SolventDimethoxyethane ethanol waterHCID 86587095—
ProductAmmonium hydroxide ethyl acetateHCID 21904419—
Product6-(Pyridin-3-yl)pyrimidin-4-amineHCID 5747657479%

Reaction Conditions

Temperature125 °C

Reaction Steps

A mixture of 6-chloropyrimidin-4-amine (0.324 g, 2.5 mmol), pyridin-3-ylboronic acid (0.384 g, 3.13 mmol), Na2CO3 (0.795 g, 7.50 mmol) and bis(triphenylphosphine)palladium(II)chloride (0.035 g, 0.050 mmol) was suspended in a mixture of DME/EtOH/water. The mixture was heated in the microwave synthesizer at 125° C. for 20 min and concentrated. The residue was purified by silica gel chromatography (10-60% ethyl acetate in hexanes, then 5-25% 9:1 methanol:ammonium hydroxide-ethyl acetate) to afford 6-(pyridin-3-yl)pyrimidin-4-amine (0.17 g, 0.987 mmol, 40% yield) as an off-white solid. LCMS R.T.=0.31;

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07863291B2
Source datasetuspto-grants-2011_01
ORD IDord-ba40fe69a51840aab0244736e8695f2d
Source noteuspto-grants-2011_01