Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 233464Generated: October 27, 2026

Water → 4-Ethylpyrrolo[1,2-a]pyrazine

https://huagongshe.com/reaction/233464

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantIodoethaneHCID 6340—
ReactantLithium diisopropylamideHCID 2724682—
ReactantPyrrolo(1,2-a)pyrazineHCID 11018843—
SolventTetrahydrofuranHCID 8028—
Product4-Ethylpyrrolo[1,2-a]pyrazineHCID 23356385—

Reaction Conditions

Temperature-78 °C

Reaction Steps

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.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05593984
Source datasetuspto-grants-1997_01
ORD IDord-eb306ae1bfc344cba9a9536013cb01a2
Source noteuspto-grants-1997_01