Tetrahydrofuran → HCID 20209683, Verbindung

Reaktionsgleichung

[C:1]([CH:3]=[CH:4][C:5]1[CH:6]=[C:7]([CH:12]=[CH:13][CH:14]=1)[C:8]([O:10][CH3:11])=[O:9])#[N:2].O1CCCC1>C(O)C.[C].[Pd]>[C:1]([CH2:3][CH2:4][C:5]1[CH:6]=[C:7]([CH:12]=[CH:13][CH:14]=1)[C:8]([O:10][CH3:11])=[O:9])#[N:2]

Komponenten

Versuchsvorschrift

To a solution of the above-mentioned crude product of methyl 3-(2-cyanoethenyl)benzoate in ethanol (45 mL)/tetrahydrofuran (15 mL) was added 10% palladium-carbon (648 mg), and the mixture was stirred at room temperature under a hydrogen atmosphere (1 atm) for 2 hr. The insoluble material was filtered off, and the filtrate was concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate=90/10→75/25), and the fractions containing the object product were concentrated under reduced pressure to give the title compound (2.03 g, 88%) as a colorless oil.