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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2290848Generated: October 25, 2026

Phenyl isocyanate → HCID 178418533, compound

https://huagongshe.com/reaction/2290848

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenyl isocyanateHCID 7672—
ReactantTriethylamineHCID 8471—
Reactant3-(4-Benzylpiperazin-1-yl)propanethiol dihydrochlorideHCID 13731114—
SolventDichloromethaneHCID 6344—
ProductHCID 178418533HCID 17841853341.9%

Reaction Steps

1.6 g of phenyl isocyanate were added to a solution of 4.0 g of 3-(4-benzylpiperazin-1-yl)propanethiol dihydrochloride and 2.6 g of triethylamine in 50 ml of methylene chloride. The mixture was refluxed for four hours, washed with water and dried (sodium sulfate). Precipitation of the salt with ethereal hydrochloric acid gave 1.2 g (20% of theory) of N-phenyl-S-[3-(4-benzylpiperazin-1-yl)-propyl]thiocarbamate dihydrochloride monohydrate as a white crystalline solid, M.p. 216°-219° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04618677
Source datasetuspto-grants-1986_10
ORD IDord-359828d1f9d14ebdae58f5c01167e6d2
Source noteuspto-grants-1986_10