Pentane → 2-n-Octyl-1-dodecylamine

Participants

Reaction Conditions

Reaction Steps

1-Iodo-2-octyldodecane (5.90 g, 14.5 mmol) and potassium phthalimide (2.94 g, 15.9 mmol) were dissolved in 25 mL of DMF and vigorously stirred for 72 h at 25° C. The reaction mixture was poured into 200 mL of pentane, and washed four times with 100 mL water. The mixture was then passed through a 3 cm silica gel plug, and concentrated to give a colorless oil. The oil was next dissolved in 150 mL of ethanol, and 4 mL of hydrazine hydrate were added, leading to a mixture which was heated to reflux overnight. The resulting precipitates were collected by filtration, dissolved in 100 mL water, and the solution was made alkaline by addition of 6 M NaOH (aq). The resulting mixture was dissolved in 200 mL pentane, washed four times with 100 mL of water, once with 70 mL of brine, dried over MgSO4, and concentrated to give a colorless oil (3.08 g, 72% yield). 1H NMR (CDCl3 500 MHz): δ: 2.60 (d, J=5.0 Hz, 2H), 2.00 (t, J=5.0 Hz, 1H), 1.30-1.20 (b, 32H), 0.89 (t, J=7.5 Hz, 6H); MS (EI): m/z (%) 297.34 (100) [M+]. Elemental Analysis (calc. C, 80.73; H, 14.57): found C, 80.78; H, 14.52.

Provenance & Evidence