Triethylamine → cyanomethyl 2-(N-methylpent-4-enamido)acetate

Participants

Reaction Steps

Cyanomethyl 2-(methylamino)acetate hydrochloride (Compound SP703) (3.00 g, 18.3 mmol) and triethylamine (6.34 ml, 45.5 mmol) were dissolved in dichloromethane (30 ml) under a nitrogen atmosphere, and pent-4-enoyl chloride (2.60 g, 22.0 mmol) was added dropwise at 0° C. The reaction solution was stirred at room temperature for 2 hours and 30 minutes and then concentrated under reduced pressure. The resulting residue was dissolved in ethyl acetate, and the solid was removed by filtration. The solution was concentrated under reduced pressure and purified by column chromatography (ethyl acetate:petroleum ether=1:10→2:7) to afford cyanomethyl 2-(N-methylpent-4-enamido)acetate (Compound SP704) (3.40 g, 88%).

Provenance & Evidence