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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 339792Generated: October 29, 2026

Sodium hydride → HCID 58174174, compound

https://huagongshe.com/reaction/339792

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantChloropyrazineHCID 73277—
ReactantHCID 58174068HCID 58174068—
SolventDimethylformamideHCID 6228—
ProductHCID 58174174HCID 5817417484.3%

Reaction Conditions

Temperature55 °C

Reaction Steps

To a solution of 4-[2-(pteridin-4-ylamino)ethyl]phenol (0.267 g, 1.0 mmol) and 2-chloropyrazine (0.114 g, 1.0 mmol) in anhydrous DMF (7 mL) was added 60% sodium hydride (NaH) in mineral oil (0.060 g, 1.5 mmol) portionwise. The mixture was stirred at 55° C. overnight and then at 70° C. for a total reaction time of 32 h. The solvent was removed in vacuo and the residue was suspended in H2O. The solid was collected by suction filtration, washed with H2O and Et2O, dried in a vacuum oven at 55° C. overnight to afford pteridin-4-yl-{2-[4-(pyrazin-2-yloxy)-phenyl]-ethyl}-amine (0.291 g, 84%) as a light brown solid: 1H NMR (300 MHz, CDCl3) δ 9.02 (d, J=1.9 Hz, 1H), 8.82 (s, 1H), 8.63 (d, J=1.9 Hz, 1H), 8.43 (d, J=1.5 Hz, 1H), 8.26 (d, J=2.4 Hz, 1H), 8.10 (dd, J=2.4, 1.5 Hz, 1H), 7.33 (d, J=8.4 Hz, 2H), 7.13 (d, J=8.4 Hz, 2H), 3.99 (dd, J=13.6, 6.9 Hz, 2H), 3.08 (t, J=6.9 Hz, 2H); ESIMS m/z 346.24 ([M+H]+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08895568B2
Source datasetuspto-grants-2014_11
ORD IDord-9f5d186d96364589a8c8469a99857000
Source noteuspto-grants-2014_11