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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1755240Generated: November 4, 2026

(3S)-(-)-3-(tert-Butoxycarbonylamino)pyrrolidine → HCID 86720533, compound

https://huagongshe.com/reaction/1755240

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(3S)-(-)-3-(tert-Butoxycarbonylamino)pyrrolidineHCID 1514396—
Reactant1-Chloropyrrolo[1,2-a]pyrazineHCID 15662089—
Catalyst1-Butyl-3-methylimidazolium tetrafluoroborateHCID 2734178—
SolventDiisopropylethylamineHCID 81531—
ProductHCID 86720533HCID 8672053359.2%

Reaction Conditions

Temperature110 °C

Reaction Steps

To a solution of (S)-tert-butyl pyrrolidin-3-ylcarbamate (0.91 g, 4.9 mmol, 1 eq) in 2.6 mL of DIPEA was added 1-chloropyrrolo[1,2-a]pyrazine (0.75 g, 4.9 mmol, 1 eq) and 1 drop of 1-butyl-3-methylimidazolium tetrafluorborate. After heating for 3 h at 110° C., the mixture was concentrated and purified by silica gel flash chromatography (100% EtOAc) to afford (S)-tert-butyl N-(1-(pyrrolo[1,2-a]pyrazin-1-yl)pyrrolidin-3-yl)carbamate (0.88 g, 2.9 mmol, 59%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09169261B2
Source datasetuspto-grants-2015_10
ORD IDord-228a7335e43b45bd97b84bd104db831e
Source noteuspto-grants-2015_10