[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([N+:10]([O-:12])=[O:11])=[CH:6][C:5]=1[OH:13])([O-:3])=[O:2].[CH2:14](Br)[CH:15]=[CH2:16].CC(C)=O.C(=O)([O-])[O-].[K+].[K+]>CN1CCCC1=O>[CH2:16]([O:13][C:5]1[CH:6]=[C:7]([N+:10]([O-:12])=[O:11])[CH:8]=[CH:9][C:4]=1[N+:1]([O-:3])=[O:2])[CH:15]=[CH2:14]A mixture of 2,5-dinitrophenol (7.36 g, 40 mmol), allyl bromide (4.84 g, 40 mmol), acetone (75 mL), 1-methylpyrrolidinone (3 mL) and potassium carbonate (11.0 g, 80 mmol) was heated to 50–66° C. for 22 h. The mixture was cooled to room temperature and filtered and the solid rinsed with ethyl acetate. The filtrate was concentrated and recrystallized from isopropanol-hexane (1:1) to give 2-allyloxy-1,4-dinitrobenzene as yellow crystals (8.36 g, mp 66.5–68° C.).
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