Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 603624Generated: October 26, 2026

4-Ethoxyaniline → N2,N4-bis-(4-ethoxyphenyl)-5-nitro-2,4-pyrimidinediamine

https://huagongshe.com/reaction/603624

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-EthoxyanilineHCID 9076—
Reactant2,4-Dichloro-5-nitropyrimidineHCID 521266—
ProductN2,N4-bis-(4-ethoxyphenyl)-5-nitro-2,4-pyrimidinediamineHCID 22060273—

Reaction Steps

In like manner to the preparation of N2,N4-bis(3-hydroxyphenyl)-5-fluoro-2,4-pyrimidinediamine, the reaction of 2,4-dichloro-5-nitropyrimidine with 4-ethoxyaniline gave N2,N4-bis-(4-ethoxyphenyl)-5-nitro-2,4-pyrimidinediamine. LCMS: ret. time: 35.91 min.; purity: 100%; MS (m/e): 396 (MH+); 1H NMR (CDCl3): δ 10.25 (1H, s), 9.11 (1H, s), 7.44 (2H, d, J=8.6 Hz), 7.37 (2H, d, J=9 Hz), 6.88 (2H, d, J=8.6 Hz), 6.80 (2H, d, J=8.6 Hz), 4.06 (2H, q, J=7.2 Hz), 4.02 (2H, q, J=7.2 Hz), 1.45 (3H, t, J=7.2 Hz), 1.42 (3H, t, J=7.2 Hz).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07906644B2
Source datasetuspto-grants-2011_03
ORD IDord-e21420fa5a6c421c89f9901099936425
Source noteuspto-grants-2011_03