[C:1]12([C:11]([NH2:13])=O)[CH2:10][CH:5]3[CH2:6][CH:7]([CH2:9][CH:3]([CH2:4]3)[CH2:2]1)[CH2:8]2.S(C)C.CO>C1COCC1>[C:1]12([CH2:11][NH2:13])[CH2:8][CH:7]3[CH2:6][CH:5]([CH2:4][CH:3]([CH2:9]3)[CH2:2]1)[CH2:10]2To a solution of admantane-1-carboxamide (2 g, 11.17 mmol) in THF (50 mL) was added BH3.Me2S (10.2 M, 3.4 mL, 34.7 mmol) under nitrogen. The mixture was heated at reflux overnight. The solution was cooled to rt. Methanol (20 mL) was added to the solution. The mixture was concentrated under vacuum to give crude product, which was purified by chromatography on silica gel to afford (1-adamantyl)methylamine (1.09 g, 59%). 1H NMR (CDCl3, 400 MHz): δ=1.44-1.96 (m, 15H), 2.30 (s, 2H).
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