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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 373122Erstellt: 26. Oktober 2026

Triethylamine → 2-n-Butyl-5-ethyl-6-methylpyrimidin-4(3H)-one

https://huagongshe.com/reaction/373122

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktTriethylamineHCID 8471—
EduktButanoic acid, 2-ethyl-3-oxo-, ethyl esterHCID 79065—
EduktPentanimidamide HydrochlorideHCID 11615174—
LösungsmittelDimethylformamideHCID 6228—
LösungsmittelSodium chloride; waterHCID 57417360—
Produkt2-n-Butyl-5-ethyl-6-methylpyrimidin-4(3H)-oneHCID 135625455—

Reaktionsschritte

A solution of 3.0 g valeramidine hydrochloride, 3.47 g ethyl 2-ethylacetoacetate, and 5.8 mL triethylamine in 20 mL DMF was heated to 120° C. for 18 hours. The mixture was diluted with brine and extracted three times with ether. The combined organic material was washed with brine, was dried over MgSO4, was stripped of solvent in vacuo, and then was still flash chromatographed in 3% MeOH in CH2Cl2 to give the title compound as a white solid.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05162325
Quelldatensatzuspto-grants-1992_11
ORD IDord-2c1dd5fc50af494f8e30ecfcd63b6475
Quellennotizuspto-grants-1992_11