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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1854628Generated: October 31, 2026

Water → HCID 86676503, compound

https://huagongshe.com/reaction/1854628

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant2-Amino-4-methylpyrimidineHCID 7939—
Reactant2,6-DibromopyridineHCID 12274—
ReactantSodium hydrideHCID 24758—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86676503HCID 86676503—

Reaction Conditions

Temperature55 °C

Reaction Steps

A solution of 2-amino-4-methylpyrimidine (980 mg, 8.86 mmol) in THF (10 ml) was added dropwise to a cooled suspension of NaH (60% on oil, 1 g, 25.32 mmol) in THF (15 ml) under inert atmosphere. The reaction mixture was heated at 55° C. for 2 hours. The reaction was cooled down to 0° C. and a solution of 2,6-dibromopyridine (2 g, 8.44 mmol) in THF (20 ml) was added. The reaction mixture was heated at 80° C. for 5 hours. The reaction was cooled down to 0° C. and hydrolysed carefully with water (50 ml). After extraction with EtOAc (2×100 ml), the combined extractions were dried over MgSO4. After filtration and evaporation, N-(6-bromopyridin-2-yl)-4-methylpyrimidin-2-amine was obtained and purified dry flash chromatography over SiO2 eluting with DCM/MeOH(1%)/NEt3 (0.5%) (0.846 g, 38%). 1H NMR (300 MHz, DMSO-d6) δ 10.12 (br s, 1H), 8.44 (d, J=5.0 Hz, 1H), 8.36 (d, J=8.3 Hz, 1H), 7.69 (t, J=8.0 Hz, 1H), 7.18 (dd, J=7.6, 0.6 Hz, 1H), 6.91 (d, J=5.0 Hz, 1H), 2.42 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08962665B2
Source datasetuspto-grants-2015_02
ORD IDord-a20fb4cea92f47608510a6471ca8197c
Source noteuspto-grants-2015_02