Methyl iodide → N,N-dibenzyl-2-(1-methoxycyclopropyl)ethanamine

Participants

Reaction Conditions

Reaction Steps

A 0° C. solution of 1-(2-(dibenzylamino)ethyl)cyclopropanol (3 g, 10.6 mmol) in THF (50 mL), under N2, was treated portion-wise with NaH (60%, 0.85 g, 21.3 mmol), stirred at 0° C. for 0.5 h, treated drop-wise with MeI (1.82 g, 12.8 mmol), warmed to RT and stirred for 3 h. The mixture was cooled to 0° C., quenched with satd. NH4Cl and partially concentrated. The residue was extracted with EtOAc (3×) and the combined organics were washed with brine, dried over Na2SO4, concentrated and purified via silica gel chromatography to afford N,N-dibenzyl-2-(1-methoxycyclopropyl)ethanamine (1.2 g, 38%). 1H NMR (400 MHz, CDCl3): δ 7.39-7.21 (m, 10 H), 3.60 (s, 4 H), 3.12 (s, 3 H), 2.65 (t, J=8 Hz, 2 H), 1.75 (t, J=8 Hz, 2 H), 0.68-0.65 (m, 2 H), 0.34-0.31 (m, 2 H).

Provenance & Evidence