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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 131123Generated: October 26, 2026

Diisopropylethylamine → 1,1-Dimethylethyl 2-{[6-(2,4-dichlorophenyl)-5-nitropyrazin-2-yl]amino}ethylcarbamate

https://huagongshe.com/reaction/131123

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantN-BOC-ethylenediamineHCID 187201—
Reactant3-(2,4-Dichlorophenyl)-5-bromo-2-nitropyrazineHCID 22318510—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product1,1-Dimethylethyl 2-{[6-(2,4-dichlorophenyl)-5-nitropyrazin-2-yl]amino}ethylcarbamateHCID 12086020—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of 3-(2,4-dichlorophenyl)-5-bromo-2-nitropyrazine (1.4 g, 4.0 mmol) in DMF (10 ml) were added Boc-ethylenediamine (960 mg, 6.0 mmol) and DIPEA (1.5 ml). The solution was stirred overnight at 80° C. The solution was cooled to room temperature, taken in ethyl acetate and water. The layers were separated and the organic layer was washed with water and brine, dried, concentrated and purified to afford the title product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07384942B2
Source datasetuspto-grants-2008_06
ORD IDord-93b7d824c124478eaf32fad12f89d1b2
Source noteuspto-grants-2008_06