P-Cresol → 3-(4-methylphenoxy)nitrobenzene

Participants

Reaction Conditions

Reaction Steps

EX-41A) To a solution of p-cresol (5.76 g, 0.053 mol) and 1,3-dinitrobenzene (8.97 g, 0.053 mol) in 100 mL of dimethylsulfoxide was added cesium carbonate (43.4 g, 0.133 mol). The reaction mixture was heated at 100° C. for 18 h, then cooled to room temperature, quenched with water, and extracted with diethyl ether. The organic layers were combined, washed with 0.1 N HCl and water, dried over MgSO4 and concentrated in vacuo. The crude product was purified by column chromatography on silica gel eluting with 1:4 ethyl acetate in hexane to afford 8.0 g (66%) of the desired 3-(4-methylphenoxy)nitrobenzene product as a yellow oil. 1H NMR (CDCl3) δ 7.83 (s, 1H), 7.64 (t, 1H), 7.32 (d, 1H), 7.18 (d, 1H), 7.09 (d, 2H), 6.8 (d, 2H), 2.20 (s, 1H).

Provenance & Evidence