Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1821724Generated: November 2, 2026

Aminopyrazine → HCID 21034118, compound

https://huagongshe.com/reaction/1821724

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAminopyrazineHCID 78747—
Reactant2-(Difluoromethoxy)phenyl isocyanateHCID 2733370—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 21034118HCID 21034118—

Reaction Steps

2-(Difluoromethoxy)phenylisocyanate (1.0 g, 5.4 mmol) and aminopyrazine (0.51 g, 5.4 mmol) were reacted for 6 hours in refluxing dimethoxyethane (20 mL). The reaction mixture was cooled to room temperature to precipitate the product, which was collected by filtration, washed with ethyl acetate, and dried in vacuo (765 mg, 50%). 1H NMR (300 Mhz, d6-DMSO) δ: 10.49 (br s, 1H), 10.26 (s, 1H), 8.83 (s, 1H), 8.35-8.24 (m, 3H), 7.53-7.00 (m,4H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07608618B2
Source datasetuspto-grants-2009_10
ORD IDord-504ef51e8c3b4503bb4f2f3d68a2d70a
Source noteuspto-grants-2009_10