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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 233464Erstellt: 23. Oktober 2026

Water → 4-Ethylpyrrolo[1,2-a]pyrazine

https://huagongshe.com/de/reaction/233464

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktWaterHCID 962—
EduktIodoethaneHCID 6340—
EduktLithium diisopropylamideHCID 2724682—
EduktPyrrolo(1,2-a)pyrazineHCID 11018843—
LösungsmittelTetrahydrofuranHCID 8028—
Produkt4-Ethylpyrrolo[1,2-a]pyrazineHCID 23356385—

Reaktionsbedingungen

Temperatur-78 °C

Reaktionsschritte

1.0 g of pyrrolo[1,2-a]pyrazine prepared in Preparation Example 1 was dissolved in 10 ml of tetrahydrofuran and then cooled to -78° C. under nitrogen atmosphere. To this solution was added 1.2 equivalents of LDA solution; the resulting mixture was stirred for 30 minutes; and 1 ml of iodoethane was added to the mixture while maintaining the temperature of -78° C. The reaction mixture was stirred for 30 minutes, warmed to room temperature and then poured into water. The organic layer was isolated and then concentrated to dryness to obtain 0.3 g of title compound.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05593984
Quelldatensatzuspto-grants-1997_01
ORD IDord-eb306ae1bfc344cba9a9536013cb01a2
Quellennotizuspto-grants-1997_01