Dimethylformamide → N-(1-cyclopentylpyrazol-5-yl) anthranilic acid

Beteiligte Stoffe

Reaktionsschritte

A mixture of 2-iodobenzoic acid (28 g, 0.113 mol), 5-amino-1-cyclopentylpyrazole (17 g, 0.113 mol), DMF (100 ml), potassium carbonate (16 g, 0.113 mol) and Cu(OAc) 2 (0.5 g) was refluxed overnight. The reaction mixture was poured into ice-water, and acidified with acetic acid to a pH of 5. The gum which formed was extracted with CH2Cl2 and the CH2Cl2 layer was washed with water, dried over MgSO4, and evaporated to afford 21 g of N-(1-cyclopentyl pyrazol-5-yl) anthranilic acid.

Herkunft & Nachweise