Chlorotrimethylsilane → 1-((4-Cyanophenyl)(2-hydroxy-6-oxo-4-(thiophen-2-yl)cyclohex-1-enyl)methyl)-3-(3-(trifluoromethyl)phenyl)urea

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Reaction Steps

Trimethylsilyl chloride (216 μL, 1.70 mmol) is added to a solution of 5-(thiophen-2-yl)-cyclohexane-1,3-dione (300 mg, 1.54 mmol), 4-formylbenzonitrile (202 mg, 1.54 mmol) and 1-(3-(trifluoromethyl)phenyl)urea (315 mg, 1.54 mmol) in a mixture of N,N-dimethyl-formamide (1.2 mL) and acetonitrile (2.3 mL). The mixture is stirred at room temperature over night and poured into a mixture of water and ice. The precipitate is filtered and dried under reduced pressure. Yield: 444 mg; ESI mass spectrum [M+H]+=512, Retention time HPLC: 0.75 min (V011_S01).

Provenance & Evidence