[CH2:1]([C:7]([CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH3:17])([C:10]#[N:11])[C:8]#[N:9])[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6].[H-].[Al+3].[Li+].[H-].[H-].[H-].O.[H][H]>C(OCC)C>[CH2:12]([C:7]([CH2:1][CH2:2][CH2:3][CH2:4][CH2:5][CH3:6])([CH2:8][NH2:9])[CH2:10][NH2:11])[CH2:13][CH2:14][CH2:15][CH2:16][CH3:17]
2,2-Dihexylpropanedinitrile (22.0 g, 94 mmol) dissolved in dry diethyl ether (100 ml) was added slowly to a suspension of lithium aluminium hydride (8.7 g, 0.23 mol) in dry diethyl ether (250 ml) under nitrogen. Upon complete addition, the mixture was heated under reflux using a water bath for 1 h and then stirred at room temperature for 24 h. Water was carefully added to the reaction mixture with cooling of the flask in an ice bath, until no more hydrogen was evolved. The reaction mixture separated into two layers and the ether layer was decanted from the aqueous layer, washed with water, and dried with anhydrous magnesium sulphate. The ether was evaporated to yield a viscous oil that was distilled under reduced pressure to yield 2,2-dihexylpropane-1,3-diamine as a colorless liquid (11.2 g, 49%) b.p. 138°-142° C./0.7 mm.
Loading…
