Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1020384Generated: November 1, 2026

Water → HCID 57461817, compound

https://huagongshe.com/reaction/1020384

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant2-Chloro-5-nitropyridineHCID 78308—
ReactantDiisopropylethylamineHCID 81531—
ReactantEthyl 5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-A]pyrazine-3-carboxylateHCID 17998728—
SolventAcetonitrileHCID 6342—
ProductHCID 57461817HCID 5746181775%

Reaction Conditions

Temperature80 °C

Reaction Steps

2-Chloro-5-nitropyridine (0.97 g, 5.5 mmol), ethyl 5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine-3-carboxylate (1.0 g, 5.1 mmol), and diisopropylethylamine (2 mL) were mixed in acetonitrile (5 mL), and heated to 80° C. for one h. The mixture was poured into water, and the precipitate was collected by filtration. The precipitate was washed with water, then by ether, and dried in a vacuum oven overnight to give 1.2 gram of product C-12 (75% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08716312B2
Source datasetuspto-grants-2014_05
ORD IDord-df2e37022a6f46679762d25af7c59326
Source noteuspto-grants-2014_05