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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2073490Generated: October 31, 2026

Potassium Iodide → 1-[4,4-Bis(4-fluorophenyl)butyl]homopiperazine

https://huagongshe.com/reaction/2073490

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium IodideHCID 4875—
ReactantHexahydro-1,4-diazepineHCID 68163—
Reactant1,1'-(4-Bromobutylidene)bis[4-fluorobenzene]HCID 93763—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
Product1-[4,4-Bis(4-fluorophenyl)butyl]homopiperazineHCID 19857168—

Reaction Steps

24 g (0.24 mol) of 1,4-diazacycloheptane, 7.8 g (0.024 mol) of 4,4-bis(4-fluorophenyl)butyl bromide and 0.14 g of potassium iodide were stirred in 60 ml of dimethylformamide at room temperature for 4 hours. The solvent was stripped off in vacuo, the residue was taken up in methylene chloride, the mixture was extracted by shaking with 2N HCl, the acid phase was brought to pH 11 with concentrated NaOH and extracted with methylene chloride and the extracts were dried and concentrated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04918073
Source datasetuspto-grants-1990_04
ORD IDord-085e3376fa71417bba37c2ac20552cc8
Source noteuspto-grants-1990_04