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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 986692Generated: October 25, 2026

Diethyl Malonate → 1,3-Di-(4-Nitrophenyl)-2,4,6-(1H,3H,5H)-Pyrimidinetrione

https://huagongshe.com/reaction/986692

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl MalonateHCID 7761—
Reactant4,4'-DinitrocarbanilideHCID 9509—
ReactantSodium HydroxideHCID 14798—
SolventEthanolHCID 702—
Product1,3-Di-(4-Nitrophenyl)-2,4,6-(1H,3H,5H)-PyrimidinetrioneHCID 12288527—

Reaction Steps

1,3-Di-(4-nitrophenyl)urea (1.8 g, 0.006 mole), diethyl malonate (1 ml, 0.006 mole), and sodium hydroxide (0.24 g, 0.006 mole) were refluxed in ethanol (100 ml) for three hours. 1,3-Di-(4-nitrophenyl)-2,4,6-(1H,3H,5H)-pyrimidinetrione precipitated as a yellow powder, m.p. greater than 250° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04714838
Source datasetuspto-grants-1987_12
ORD IDord-19e96a362a354a909ca7eb54f7d632bc
Source noteuspto-grants-1987_12