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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2276563Generated: October 30, 2026

Ethyl Acetate → 2-(2,3-Dip-tolyl-7,8-dihydropyrido[2,3-b]pyrazin-5(6H)-yl)ethanamine

https://huagongshe.com/reaction/2276563

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantSodium CarbonateHCID 10340—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 86681851HCID 86681851—
SolventHydrochloric AcidHCID 313—
Product2-(2,3-Dip-tolyl-7,8-dihydropyrido[2,3-b]pyrazin-5(6H)-yl)ethanamineHCID 66665936—

Reaction Steps

tert-Butyl 2-(2,3-dip-tolyl-7,8-dihydropyrido[2,3-b]pyrazin-5(6H)-yl)ethylcarbamate (step 1)(171 mg, 0.373 mmol) was stirred in 4M HCl in Dioxane (1 ml, 4.00 mmol) for 2 h. The suspension was added to EtOAc and saturated sodium carbonate. The organic layer was separated, dried over (MgSO4), filtered and concentrated in vacuo to afford the title compound;

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09132127B2
Source datasetuspto-grants-2015_09
ORD IDord-bd0779317a81466b8091b86d2c58c866
Source noteuspto-grants-2015_09