Pyridine → N-acetyl-2-methylalanine

Participants

Reaction Steps

A suspension of 41.2 g (0.4 mmol) of alpha-aminoisobutyric acid, 100 ml pyridine, and 100 ml water is stirred at 0°-5° C. and 45.0 ml (0.45 mmol) of acetic anhydride is added over a period of 30 min. Solution is observed after 1 hr and the mixture is allowed to stand at room temperature for 10 hrs. The reaction mixture is diluted with 500 ml water and evaporated in vacuo. The residue is then recrystallized from water, dried in vacuo affording 37.0 g N-acetyl-alpha-aminoisobutyric acid.

Provenance & Evidence