Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1525301Generated: November 5, 2026

Diethyl (ethoxymethylene)malonate → Ethyl 2-(4-fluoro-1H-pyrazol-1-yl)-4-hydroxypyrimidine-5-carboxylate

https://huagongshe.com/reaction/1525301

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl (ethoxymethylene)malonateHCID 6871—
ReactantSodium MethoxideHCID 10942334—
Reactant4-Fluoro-1H-pyrazole-1-carboximidamide hydrochlorideHCID 71743387—
SolventEthanolHCID 702—
ProductEthyl 2-(4-fluoro-1H-pyrazol-1-yl)-4-hydroxypyrimidine-5-carboxylateHCID 17846981262.8%

Reaction Steps

To a solution of 28-e (2 g, 12 mmol) in EtOH was added sodium methoxide (1 g, 18 mmol) and diethyl ethoxymethylenemalonate (2.64 g, 12 mmol). The reaction was cooled to room temperature, filtered and washed with EtOH and Et2O to afford the title product, 28-f, (1.9 g, 61%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09079930B2
Source datasetuspto-grants-2015_07
ORD IDord-93c23eec8f9a4e058021c389330afec4
Source noteuspto-grants-2015_07