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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 326859Generated: October 25, 2026

3-Aminopyrazine-2-carbonitrile → 4-Amino-2-[(4-methylphenoxy)methyl]pteridine

https://huagongshe.com/reaction/326859

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Aminopyrazine-2-carbonitrileHCID 817699—
Reactant2-(4-Methylphenoxy)acetamidineHCID 13430822—
ReactantAcetone ethanolHCID 21889777—
SolventEthanolHCID 702—
Product4-Amino-2-[(4-methylphenoxy)methyl]pteridineHCID 10587889—

Reaction Steps

Obtained using the procedure described in section c of Example 2, starting with 6.9 g (0.057 mole) of 3-amino-2-pyrazinecarbonitrile and 14.1 g (0.086 mole) of 2-(4-methylphenoxy)acetamidine [prepared according to C. Djerassi and C. R. Scholz, U.S. Pat. No. 2,517,468; C.A. 1951, 45, 661f] in 350 ml of absolute ethanol. Refluxing time: 2 hours. Yld: 2.6 g (17%), m.p. 225°-227° C. (acetone/ethanol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05270465
Source datasetuspto-grants-1993_12
ORD IDord-1e08b584bc8d4f4cbe3a062944c9c19e
Source noteuspto-grants-1993_12