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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 418002Generated: October 29, 2026

Sodium Chloride → HCID 24855847, compound

https://huagongshe.com/reaction/418002

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ChlorideHCID 5234—
ReactantTriethylamineHCID 8471—
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant1,1'-ThiocarbonyldiimidazoleHCID 80264—
ReactantEthyl piperazine-1-acetateHCID 207112—
SolventTetrahydrofuranHCID 8028—
ProductHCID 24855847HCID 24855847115%

Reaction Steps

Ethyl piperazine-1-acetate (680 mg, 3.71 mmol) in tetrahydrofuran (8.0 mL) was mixed with triethylamine (0.776 mL, 5.57 mmol) and thiocarbonyldiimidazole (992 mg, 5.57 mmol) at room temperature and stirred at room temperate for 2 hours and then stirred with hydrazine monohydrate (0.272 mL, 5.57 mmol) for another 2 hours. The reaction solution was mixed with saturated aqueous sodium chloride and extracted with ethyl acetate. The extract was dried over anhydrous magnesium sulfate and filtered, and the filtrate was concentrated to give the crude preparation of the desired product (115% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08093251B2
Source datasetuspto-grants-2012_01
ORD IDord-ba694221e7224f2c802e7ae1c1416377
Source noteuspto-grants-2012_01