反应详情

To a mixture of 0.15 g of 4′-(trifluoromethyl)acetophenone and 10 ml of pyridine was added 0.30 g of O-(4-(2,6-dichloro-4-(3,3-dichloro-2-propenyloxy)phenoxy)butyl)hydroxylamine hydrochloride. After stirring at room temperature for 1 hour, the reaction mixture was poured into 5% aqueous citric acid solution, and extracted twice with ethyl acetate. The ethyl acetate layers were combined, washed with water, dried over anhydrous magnesium sulfate, and concentrated to give a crude product. This crude product was subjected to silica gel chromatography, which afforded 0.30 g (yield, 75.5%) of 4′-(trifluoromethyl)acetophenone O-(4-(2,6-dichloro-4-(3,3-dichloro-2-propenyloxy)phenoxy)butyl)oxime, nD21.5 1.5420.

1. extractionextracted twice with ethyl acetate
2. washwashed with water
3. dry with materialdried over anhydrous magnesium sulfate
4. concentrationconcentrated
5. customto give a crude product