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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1927343Generated: October 26, 2026

Triethylamine → 4-(4-Imino-2-thioxo-1,3-diazaspiro[4.4]non-3-yl)-2-trifluoromethylbenzonitrile

https://huagongshe.com/reaction/1927343

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant1-AminocyclopentanecarbonitrileHCID 2106897—
Reactant4-Isothiocyanato-2-(trifluoromethyl)benzonitrileHCID 11615540—
ReactantPropan-2-one--dichloromethane (1/1)HCID 21584124—
SolventTetrahydrofuranHCID 8028—
Product4-(4-Imino-2-thioxo-1,3-diazaspiro[4.4]non-3-yl)-2-trifluoromethylbenzonitrileHCID 8660985573%

Reaction Steps

Triethylamine (0.101 g, 0.1 mmol) was added to a solution of 1a (0.684 g, 3 mmol) and 24a (0.33 g, 3 mmol) in dry THF (5 ml). The reaction mixture was stirred at room temperature for 5 h and then concentrated to yield a brown residue which was subjected to flash chromatography (dichloromethane/acetone, 93:7) to afford 24b (0.741 g, 2.19 mmol, 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08183274B2
Source datasetuspto-grants-2012_05
ORD IDord-725f0f47694e4c19a527251382a29d83
Source noteuspto-grants-2012_05