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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1270330Generated: November 1, 2026

Hydrochloric Acid → 3-Ethyl-6-methoxy-5-[2-methoxy4-(trifluoromethoxy)phenyl]pyrazin-2-ylamine

https://huagongshe.com/reaction/1270330

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant{3-Ethyl-6-methoxy-5-[2-methoxy-4-(trifluoromethoxy)phenyl]pyrazin-2-yl} [(4-methoxyphenyl)methyl]amineHCID 22248943—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
SolventDiethyl EtherHCID 3283—
Product3-Ethyl-6-methoxy-5-[2-methoxy4-(trifluoromethoxy)phenyl]pyrazin-2-ylamineHCID 2224889893.2%

Reaction Steps

To {3-ethyl-6-methoxy-5-[2-methoxy-4-(trifluoromethoxy)phenyl]pyrazin-2-yl}[(4-methoxyphenyl)methyl]amine (115 mg, 0.25 mmol) in methanol (3 mL) under a nitrogen atmosphere is added 1M hydrochloric acid in ether (2 mL) and 10% palladium on carbon (40 mg). The mixture is then hydrogenated at 1 ATM for 18 h, filtered through Celite and evaporated to give 3-ethyl-6-methoxy-5-[2-methoxy4-(trifluoromethoxy)phenyl]pyrazin-2-ylamine (80 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07202250B2
Source datasetuspto-grants-2007_04
ORD IDord-5d5f5f98eddb4da3a08d0f33d674f5de
Source noteuspto-grants-2007_04