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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 641833Generated: October 30, 2026

Potassium thiocyanate → 1-Benzyl-4-(4-isopropyl-phenyl)-6-prop-2-ynyloxy-1H-quinazoline-2-thione

https://huagongshe.com/reaction/641833

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium thiocyanateHCID 516872—
Reactant(2-Benzylamino-5-propargyloxy-phenyl)-(4-isopropyl-phenyl)-methanoneHCID 45140213—
SolventAcetic AcidHCID 176—
Product1-Benzyl-4-(4-isopropyl-phenyl)-6-prop-2-ynyloxy-1H-quinazoline-2-thioneHCID 1032016516.1%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 140 mg (0.365 mmol) (2-benzylamino-5-propargyloxy-phenyl)-(4-isopropyl-phenyl)-methanone in 5 ml acetic acid is added 68 mg (0.695 mmol) potassium thiocyanate. The reaction is stirred for two days at 60° C. The solvent is removed and the residue is extracted with water/dichloromethane. After evaporation of the organic phase the crude product is purified by flash-chromatography (MeOH/CH2Cl2, 1:9) to give 25 mg (16%) of a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07696216B2
Source datasetuspto-grants-2010_04
ORD IDord-4019bd812d74429f85bb6645d476b6a3
Source noteuspto-grants-2010_04