Acetic Acid → 3-(2-(Trifluoromethyl)pyridin-4-ylamino)cyclopent-2-enone

Participants

Reaction Conditions

Reaction Steps

A mixture of cyclopentane-1,3-dione (1.51 g, 15.4 mmol), 2-(trifluoromethyl)pyridin-4-amine (2.50 g, 15.4 mmol) and acetic acid (7.5 mL) is heated at 130° C. for 5 h, cooled at room temperature, diluted with water and methanol, and purified by reversed phase HPLC (Waters SunFire™-C18, gradient of acetonitrile in water, 0.1% formic acid). Yield: 2.26 g; ESI mass spectrum [M+H]+=243; Retention time HPLC: 0.77 min (Z018_S04).

Provenance & Evidence