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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1457605Generated: November 4, 2026

Potassium Carbonate → HCID 22099464, compound

https://huagongshe.com/reaction/1457605

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantHexamethylphosphoramideHCID 12679—
Reactant1-BenzylpiperazineHCID 75994—
ReactantBenzyl (2-iodoethyl)carbamateHCID 11301181—
SolventWaterHCID 962—
ProductHCID 22099464HCID 2209946470.2%

Reaction Steps

A mixture of 6.92 g of N-benzyloxycarbonyl-2-iodo-ethylamine, 4.00 g of 1-benzylpiperazine, 15.66 g of potassium carbonate and 40 ml of hexamethylphosphoramide (HMPA) was stirred at room temperature for overnight. Water was added to the reaction mixture, and the resulting mixture was extracted with diethyl ether. The extract was washed and dried, and the solvent was removed under reduced pressure. The residue was purified by silica gel column chromatography (solvent; chloroform:methanol=15:1) to give 5.63 g of N-benzyloxycarbonyl-2-(4-benzylpiperazin-1-yl)ethylamine (yield: 70%, oily product, IR: 3230, 2910, 1710 cm-).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05849732
Source datasetuspto-grants-1998_12
ORD IDord-8882b3d22c5349a2adaff0d47fe1a0e0
Source noteuspto-grants-1998_12