(E)-(6-methoxyindan-1-ylidene)acetonitrile → (E)-1-(2-Aminoethylidene)-6-methoxyindan

反応式

[CH3:1][O:2][C:3]1[CH:11]=[C:10]2[C:6]([CH2:7][CH2:8]/[C:9]/2=[CH:12]\[C:13]#[N:14])=[CH:5][CH:4]=1.N.C(O)C>C(O)C.[Co]>[CH3:1][O:2][C:3]1[CH:11]=[C:10]2[C:6]([CH2:7][CH2:8]/[C:9]/2=[CH:12]\[CH2:13][NH2:14])=[CH:5][CH:4]=1

参加物

実験手順

To a solution of (E)-(6-methoxyindan-1-ylidene) acetonitrile (5.0 g, 27 mmol.) in ethanol (50 mL) were added a saturated ammonia/ethanol solution (250 mL) and Raney cobalt (10 g). The mixture was stirred for 5 hours at room temperature under hydrogen atmosphere (5 kgf/cm2). The Raney cobalt was filtered off, and the solvent was distilled off under reduced pressure to leave (E)-2-(6-methoxyindan-1-ylidene)ethylamine. This oily residue was dissolved in ethanol (20 mL). The solution was cooled to -40° C., to which was added a saturated hydrogen chloride/ethanol solution. The resulting crystalline precipitate was collected by filtration to obtain the title compound (yield 4.3 g, 71%).