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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1486814Generated: November 1, 2026

Water → HCID 67536094, compound

https://huagongshe.com/reaction/1486814

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTriethylamineHCID 8471—
ReactantMethyl 5-chloropyrazine-2-carboxylateHCID 406081—
Reactant4-AminotetrahydropyranHCID 419223—
Solvent1,4-DioxaneHCID 31275—
SolventSodium chloride; waterHCID 57417360—
ProductHCID 67536094HCID 6753609433.9%

Reaction Conditions

Temperature100 °C

Reaction Steps

Methyl 5-chloro-2-pyrazinecarboxylate (507 mg, 2.94 mmol), Et3N (1.08 mL, 7.64 mmol) and 4-aminotetrahydropyran (0.40 mL, 3.82 mmol) were dissolved in dioxane (5 mL) and heated in a microwave reactor at 100° C. for 20 min. Water (50 mL) and brine (25 mL) were added and the reaction mixture was extracted into EtOAc (2×100 mL), dried (MgSO4) and concentrated in vacuo to give the title compound (236 mg, 33.9%) as a yellow oil. LCMS (ES+): 238.2 [MH]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09428498B2
Source datasetuspto-grants-2016_08
ORD IDord-503db6c51ea74e10975947394d31f2c2
Source noteuspto-grants-2016_08