N-Methylallylamine → (2R)-1-[allyl(methyl)amino]propan-2-ol

Participants

Reaction Conditions

Reaction Steps

(2R)-2-methyloxirane (13.76 g) was added to a suspension of N-methylprop-2-en-1-amine (25 ml) and ytterbium(III) trifluoromethanesulfonate (100 mg) in dioxane (100 ml) and heated to 140° C. for 1 hour under microwave irradiation. The solution was concentrated in vacuo and the residue partitioned between water (100 ml) and ethyl acetate (200 ml). The organic extract was dried and solvent removed in vacuo yielding (2R)-1-[allyl(methyl)amino]propan-2-ol as a yellow oil (8.8 g, 29%); NMR spectrum (CDCl3) 1.20 (d, 3H), 2.33 (s, 3H), 2.27-2.46 (m, 2H), 3.05 (m, 1H), 3.23 (m, 1H), 3.88 (m, 1H), 5.19-5.29 (m, 2H), 5.90 (m, 1H); Mass spectrum M+ 129.

Provenance & Evidence