Isopropyl iodide → HCID 14687427, compound

Participants

Reaction Steps

To a stirred solution of sodium hydroxide (387 mg, 9.67 mmol) in anhydrous DMSO was added 4-nitrobenzene-1,2-diol (500 mg, 3.22 mmol) at 0° C. After stirring for 5 min, 2-iodo-propane (603 mg, 3.55 mmol) was added dropwise. The resulting dark mixture was stirred for 1 h at room temperature. The reaction mixture was quenched with water and then acidified with 1M HCl (pH=4) and then the aqueous layer was extracted with ethyl acetate (3×20 mL). The combined organic layer was washed with sat. NaCl and then dried over MgSO4, filtered and concentrated under reduced pressure to dryness. The crude product was purified by silica gel column chromatography using a gradient of 0-20% EtOAc in hexanes to obtain 2-isopropoxy-5-nitro-phenol (163 mg, 51%)1H NMR (400.0 MHz, CDCl3) δ 7.86 (dd, J=2.5, 8.8 Hz, 1H), 7.76 (d, J=2.5 Hz, 1H), 6.99 (d, J=8.8 Hz, 1H), 4.73 (qn, J=6.1 Hz, 1H) and 1.43 (d, J=6.1 Hz, 6H).

Provenance & Evidence