[C:1]([CH2:3][CH2:4][P:5]([CH2:11][CH3:12])(=[O:10])[O:6][CH:7]([CH3:9])[CH3:8])#[N:2].N.[H][H]>C(O)(C)C.[Ni]>[NH2:2][CH2:1][CH2:3][CH2:4][P:5]([CH2:11][CH3:12])(=[O:10])[O:6][CH:7]([CH3:9])[CH3:8]To 34.1 g of isopropyl 2-cyanoethyl(ethyl)phosphinate in 500 ml of isopropanol are added 60 ml of liquid ammonia and 6.8 g of Raney-Nickel. The mixture is heated to 80° and treated with hydrogen at 100 bar. After 11/2 hours hydrogen-uptake stops. The reaction mixture is filtered and the filtrate distilled to give isopropyl 3-aminopropyl(ethyl)phosphinate as a colorless oil, b.p. 75°/13 Pa.
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