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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 76643Generated: October 24, 2026

Sodium Hydroxide → N2,N4-bis(4-carboxyphenyl)-5-fluoro-2,4-pyrimidinediamine

https://huagongshe.com/en/reaction/76643

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantN2,N4-bis(3-carboxyphenyl)-5-fluoro-2,4-pyrimidinediamineHCID 10126258—
ReactantN2,N4-bis(4-methoxycarbonylphenyl)-5-fluoro-2,4-pyrimidinediamineHCID 15604085—
ProductN2,N4-bis(4-carboxyphenyl)-5-fluoro-2,4-pyrimidinediamineHCID 2206046759.7%

Reaction Steps

In a manner analogous to the preparation of N2,N4-bis(3-carboxyphenyl)-5-fluoro-2,4-pyrimidinediamine, N2,N4-bis(4-methoxycarbonylphenyl)-5-fluoro-2,4-pyrimidinediamine (100 mg, 0.25 mmol) and NaOH (200 mg, 5 mmol) gave N2,N4-bis(4-carboxyphenyl)-5-fluoro-2,4-pyrimidinediamine (55 mg, 59%) as a white solid. 1H NMR (CD3OD): δ 7.77 (d, J=8.7 Hz, 2H), 7.92 (d, J=8.7 Hz, 2H), 7.94 (d, J=8.4 Hz, 2H), 8.02 (d, J=8.7 Hz, 2H), 8.07 (d, J=3.6 Hz, 1H); LCMS: ret. time: 16.34 min.; purity: 100%; MS (m/e): 368.87 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08835430B2
Source datasetuspto-grants-2014_09
ORD IDord-138d480deb044f978149330dd2558440
Source noteuspto-grants-2014_09