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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 261619Generated: November 2, 2026

Potassium thiocyanate → 4-(4-Benzamidobutyl)-5-methylimidazole-2-thione

https://huagongshe.com/reaction/261619

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium thiocyanateHCID 516872—
Reactant3-Amino-7-benzamidoheptan-2-one hydrochlorideHCID 20394568—
SolventWaterHCID 962—
Product4-(4-Benzamidobutyl)-5-methylimidazole-2-thioneHCID 2039455725.3%

Reaction Steps

A solution of 3-amino-7-benzamidoheptan-2-one hydrochloride (16.39 g, 0.0576 mol) and potassium thiocyanate (7.30 g, 0.0755 mol, excess) in water was heated under reflux for 20 hours. The aquesus phase was decanted off and the organic phase was washed with water, and recrystallised from acetonitrile to give 4-(4-benzamidobutyl)-5-methylimidazole-2-thione (4.18 g, 25%) m.p. 180°-184°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04166184
Source datasetuspto-grants-1979_08
ORD IDord-d1526fc277ce41089995dc0eceed56f5
Source noteuspto-grants-1979_08