1,3-Dibromopropane → 4-(3-Bromopropoxy)-1-methyl-2-nitrobenzene

Participants

Reaction Conditions

Reaction Steps

A solution of 4-methyl-3-nitrophenol (1.00 g, 6.53 mmol) in DMF (6 mL) was treated with K2CO3 (0.903 g, 6.53 mmol) and 1,3-dibromopropane (6.63 mL, 65.3 mmol) and heated to 100° C. for 2.5 h. The cooled mixture was diluted with water and extracted with DCM. The combined organics were dried (MgSO4), filtered and evaporated before purification by column chromatography (SiO2; eluting with 20% EtOAc in cyclohexane) to afford the desired product V-h as a mobile yellow oil (1.05 g, 59%). 1H NMR (300 MHz, CDCl3) δ 7.52 (d, J=2.7 Hz, 1H), 7.23 (d, J=8.5 Hz, 1H), 7.06 (dd, J=8.5, 2.7 Hz, 1H), 4.14 (t, J=5.8 Hz, 2H), 3.60 (t, J=6.4 Hz, 2H), 2.53 (s, 3H), 2.40-2.24 (m, 2H).

Provenance & Evidence