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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 846380Generated: November 4, 2026

2,4-Diamino-5-(2,3-dichloro-4-nitrophenyl)-6-methylpyrimidine → 2,4-Diamino-5-(2,3,4-trichlorophenyl)-6-methylpyrimidine

https://huagongshe.com/reaction/846380

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,4-Diamino-5-(2,3-dichloro-4-nitrophenyl)-6-methylpyrimidineHCID 19705031—
ReactantChloroform methanolHCID 21584188—
CatalystCuprous chlorideHCID 62652—
Product2,4-Diamino-5-(2,3,4-trichlorophenyl)-6-methylpyrimidineHCID 19705056—

Reaction Steps

This compound was made from the compound of Example 47 by reduction to the amine (PtO2, H2, AcOH), formation of the diazonium salt (NaNO2, H2SO4), and reaction of this with CuCl (as for Example 57). Sublimes at 275° C. Homogenous on TLC (methanol/chloroform, 1:9) Rf=0.36.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05136080
Source datasetuspto-grants-1992_08
ORD IDord-f326a576f3b6494db45120a33d80fcbf
Source noteuspto-grants-1992_08