Methylglyoxal → HCID 11424665, compound

Participants

Reaction Steps

To a solution of pyruvaldehyde (40% w/w solution in water, 2.67 mL, 3.15 g, 17.5 mmol) in 50 mL of Et2O at room temperature was added dropwise ethyl 4-anino-piperidinecarboxylate (3.0 mL, 3.01 g, 17.5 mmol). After 20 min, the solution was diluted with 50 mL of Et2O and washed with 3×30 mL of water. The solution was concentrated in vacuo to yield 2.3 g (58%) of the imine product which was used as such in the subsequent step; 1H NM (CDCl3) δ 7.58 (1H, s), 4.07 (2H, q, J=7.1 Hz)), 4.04 (2H, m), 3.39 (1H, m), 3.02 (2H, m), 2.31 (3H, s), 1.65 (4H, m (3H, t, J=7.1 Hz).

Provenance & Evidence