反应详情

2.0 g of 1-(4-{3-[2,6-dichloro-4-(3,3-dichloro-allyloxy)-phenoxy]-propoxy}-phenyl)propan-2-one are introduced into 4 ml of HCl 5% in dioxane, then 0.6 g of isopentyl nitrite is added dropwise thereto. After 1 hour's stirring at room temperature, 0.8 ml of triethylamine is added. The reaction mixture is poured into water and extracted with ethyl acetate. After concentration of the organic phase and purification over silica gel, 1-(4-{3-[2,6-dichloro-4-(3,3-dichloro-allyloxy)-phenoxy]-propoxy}-phenyl)-propane-1,2-dione 1-oxime is obtained. 1H-NMR (CDCl3) 300 MHz: 2.30 (m, 2H), 2.51 (s, 3H), 4.16 (t, 2H), 4.30 (t, 2H), 4.58 (d, 2H), 6.11 (t, 1H), 6.84 (s, 2H), 6.98 (d, 2H), 7.34 (d, 2H), 8.30 (s, 1H)

1. extractionextracted with ethyl acetate
2. customAfter concentration of the organic phase and purification over silica gel