Hydrochloric Acid → 4-Methoxy-4'-nitrobenzophenone

Participants

Reaction Steps

The compound of formula 3a was prepared according to the procedure of Shani, J. et al., J. Med. Chem, 1985, 28,1504. Thus, a mixture of 4-nitrobenzoyl chloride (90 g, 0.48 mol) and anisole (57.24 g, 0.53 mol) in carbon disulfide (450 mL) was stirred in a three neck round bottom flask equipped with nitrogen inlet, condenser and mechanical stirrer that was being cooled in an ice bath. Aluminum chloride (84.0 g, 0.63 mol) was added in portions and stirring continued at ice bath temperature for 30 minutes, then at room temperature for an additional 1 hour. The reaction mixture was cooled, treated with concentrated hydrochloric acid (150 mL), diluted with cold water (250 mL). The product was collected, filtered, washed, dried, and crystallized from ethyl acetate to give 4-(4-methoxybenzoyl)-nitrobenzene as an off-white solid, m.p. 120-122° C.; Analysis for C14H11NO4: Calc.: C, 65.3; H, 4.31; N, 5.44; Found: C, 65.22; H, 4.16; N, 5.69.

Provenance & Evidence