2-(4,6-Dimethoxy-2-pyrimidinyloxy)benzaldoxime → 0-(3-Chlorocinnamyl)-2-(4,6-dimethoxy-2-pyrimidinyloxy)benzaldoxime

Participants

Reaction Steps

5.5 g of 2-(4,6-dimethoxy-2-pyrimidinyloxy)benzaldoxime and 4.6 g of 3-chlorocinnamyl bromide were dissolved in 30 ml of dry acetone containing 2.7 g of anhydrous potassium carbonate. The solution was heated for 5 hours under stirring and reflux. After the reaction mixture was allowed to cool down, the acetone was distilled out under reduced pressure and the resulting residue was dissolved in 200 ml of ethyl acetate. The ethyl acetate solution was washed with water and the organic layer was dried over anhydrous sodium sulfate. The solution was then concentrated under reduced pressure. The residue was purified by silica gel chromatography (developer: n-hexane:ethyl acetate:4:1) to obtain 5.2 g of 0-(3-chlorocinnamyl)-2-(4,6-dimethoxy-2-pyrimidinyloxy)benzaldoxime as a semi-solid substance.

Provenance & Evidence