Phosphorus oxychloride → 2-Chloro-4-isopropyl-5,8-dimethylquinoline

Participants

Reaction Steps

A solution of 4-isopropyl-5,8-dimethylquinolin-2-ol (1.30 g, 6.05 mmol), 700 L (1.2 eq) of POCl3 in toluene were reacted as outlined in Scheme 1 above to yield 1.00 g of 2-chloro-4-isopropyl-5,8-dimethylquinoline (71%). Spectroscopic data: 1H NMR (300 MHz, CDCl3) δ ppm 1.34 (d, J=6.74 Hz, 6 H) 2.71 (s, 3 H) 2.87 (s, 3 H) 4.12 (quin, J=6.74 Hz, 1 H) 7.21 (d, J=7.33 Hz, 1 H) 7.32 (s, 1 H) 7.40 (d, J=7.33 Hz, 1 H).

Provenance & Evidence