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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 435647Generated: October 29, 2026

Potassium Iodide → 1-[2-[4-(2-Chloro-10,11-dihydro-dibenzo[b,f]thiepin-10-yl)-1-piperazinyl]-ethyl]-3-methyl-2-imidazolidinone

https://huagongshe.com/reaction/435647

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium IodideHCID 4875—
ReactantPotassium CarbonateHCID 11430—
Reactant1-(3-Chloro-5,6-dihydrobenzo[b][1]benzothiepin-6-yl)piperazineHCID 3055979—
Reactant1-(2-Chloroethyl)-3-methylimidazolidin-2-oneHCID 15653110—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
Product1-[2-[4-(2-Chloro-10,11-dihydro-dibenzo[b,f]thiepin-10-yl)-1-piperazinyl]-ethyl]-3-methyl-2-imidazolidinoneHCID 21481153—

Reaction Steps

8.3 g of 1-(2-chloro-10,11-dihydro-dibenzo[b,f]thiepin-10-yl)-piperazine are treated, together with 11.6 g of powdered potassium carbonate, 0.2 g of potassium iodide and 80 ml of toluene, with 8.6 g of β-chloroethyl-3-methyl-2-imidazolidinone and the mixture is heated under reflux for 20 hours. The mixture is then poured into water, the organic phase washed with water, dried over sodium sulphate and evaporated. There is obtained 1-[2-[4-(2-chloro-10,11-dihydro-dibenzo[b,f]thiepin-10-yl)-1-piperazinyl]-ethyl]-3-methyl-2-imidazolidinone as a brown oil. By treatment of this compound with maleic acid in ethanol/ether there is obtained the corresponding maleate which melts at 186°-188° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04006145
Source datasetuspto-grants-1977_02
ORD IDord-e7a1e78966c74566b1042a35d9ba637e
Source noteuspto-grants-1977_02