HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 534359Generated: October 26, 2026
Hydrochloric Acid → N2,N4-bis(4-ethoxyphenyl)-2,4-pyrimidinediamine
https://huagongshe.com/reaction/534359
Participants
| Role | Name | HCID | Charge |
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| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 4-Ethoxyaniline | HCID 9076 | — |
| Reactant | 2,4-Dichloropyrimidine | HCID 77531 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | N2,N4-bis(4-ethoxyphenyl)-2,4-pyrimidinediamine | HCID 22061075 | — |
Reaction Steps
To a solution of 2,4-dichloropyrimidine (0.015 g, 0.1 mmol) in EtOH (1 mL) was added 4-ethoxyaniline (0.034 g, 0.025 mmol) and heated in a sealed tube at 70-80° C. for 24 h. Upon cooling the reaction was diluted with H2O (10 mL), acidified with 2N HCl, the solid obtained was filtered, washed with H2O and dried to give N2,N4-bis(4-ethoxyphenyl)-2,4-pyrimidinediamine (R926069). 1H NMR (CD3OD): δ 7.63 (d, 1H), 7.45 (d, 2H), J=9 Hz), 7.32 (d, 2H, J=9.3 Hz), 6.95 (d, 2H, J=6.9 Hz), 6.87 (d, 2H, J=8.7 Hz), 6.23 (d, 1H, J=7.2 Hz), 4.04 (m, 4H), 1.38 (m, 6H); LCMS: ret. time: 25.91 min.; purity: 99.5%; MS (m/e): 351 (MH+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08853397B2 |
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| Source dataset | uspto-grants-2014_10 |
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| ORD ID | ord-12e4eed0901f4a85a8531fde0522b2d3 |
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| Source note | uspto-grants-2014_10 |
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